Taxonomic names from C. E. Schweitzer et al. 2010
- Abyssophthalmus bellaii, Cronier and Bouriscot 2009 [Longodromitidae]
- Abyssophthalmus hebes, Von Meyer 1835 [Longodromitidae]
- Abyssophthalmus mainense, Cronier and Bouriscot 2009 [Longodromitidae]
- Acanthinopus, Pinna 1974 [Decapoda]
- Acanthinopus gibbosus, Pinna 1974 [Decapoda]
- Acanthocarpus obscurus, Rathbun 1918 [Calappidae]
- Acanthochirana angulata, Oppel 1862 [Aegeridae]
- Acanthochirana cenomanica, M. Glaessner 1946 [Aegeridae]
- Acanthochirana cordata, Munster 1839 [Aegeridae]
- Acanthochirana krausei, Forster 1967 [Aegeridae]
- Acanthochirana smithwoodwardi, V. Van Straelen 1940 [Aegeridae]
- Acanthogalathea, Muller and Collins 1991 [Galatheidae]
- Acanthogalathea feldmanni, De Angeli and Garassino 2002 [Galatheidae]
- Acanthogalathea parva, Muller and Collns 1991 [Galatheidae]
- Acanthogalathea squamosa, Beschin et al. 2007 [Galatheidae]
- Acanthoportunus, C. Schweitzer and R. Feldmann 2002 [Portunidae]
- Acanthoportunus buchanani, C. Schweitzer and R. Feldmann 2002 [Portunidae]
- Achaeus, Leach 1817 [Inachidae]
- Achaeus magnus, Muller 1978 [Inachidae]
- Achaeus nomurai, Takeda and Fujiyama 1984 [Inachidae]
- Achaeus parvulus, De Angeli and Caporiondo 2010 [Inachidae]
- Aciculopoda, R. M. Feldmann and C. E. Schweitzer 2010 [Decapoda]
- Aciculopoda mapesi, R. M. Feldmann and C. E. Schweitzer 2010 [Decapoda]
- Acidopsidae, family, Stevcic 2005 [Decapoda]
- Actaea acantha, H. Milne-Edwards 1834 [Xanthidae]
- Actaea bifrons, Rathbun 1898 [Xanthidae]
- Actaea calzadai, Muller 1984 [Xanthidae]
- Actaea persica, A. Milne-Edwards 1865 [Xanthidae]
- Actaea polyacantha, Heller 1861 [Xanthidae]
- Actaea pura, Stimpson 1859 [Xanthidae]
- Actaea semblatae, Guinot 1976 [Xanthidae]
- Actaea tropicana, Hu and Tao 1996 [Xanthidae]
- Actaea turocampestris, Muller 1984 [Xanthidae]
- Actaeinae, subfamily, Alcock 1898 [Xanthidae]
- Actaeites, Muller and Collins 1991 [Decapoda]
- Actaeites lobatus, Muller and Collins 1991 [Decapoda]
- Actaeodes, Dana 1851 [Xanthidae]
- Actaeodes hirsutissima, Ruppell 1830 [Xanthidae]
- Actaeodes tomentosus, H. Milne-Edwards 1834 [Xanthidae]
- Actaeops, Portell and Collins 2004 [Xanthidae]
- Actaeops frontalis, Portell and Collins 2004 [Xanthidae]
- Actaeopsis wiltshirei, Carter 1898 [Decapoda]
- Actinotocarcinus maclauchlani, R. Feldmann 1993 [Actinotocarcinus]
- Actumnus guinotae, Karasawa and Inoue 1992 [Pilumnidae]
- Actumnus squamosus, De Haan 1835 [Pilumnidae]
- Actumnus telegdii, Muller 1974 [Pilumnidae]
- Aeger brevirostris, Van Straelen 1923 [Aegeridae]
- Aeger elegans, Munster 1839 [Aegeridae]
- Aeger elongatus, Garassino and Teruzzi 1990 [Aegeridae]
- Aeger foersteri, Garassino and Teruzzi 1990 [Aegeridae]
- Aeger fraconicus, Forster 1980 [Aegeridae]
- Aeger gracilis, Forster and Crane 1984 [Aegeridae]
- Aeger hidalguensis, R. M. Feldman 2007 [Aegeridae]
- Aeger insignis, Opel 1962 [Aegeridae]
- Aeger laevis, Blake 1862 [Aegeridae]
- Aeger lehmanni, Langenhan 1910 [Aegeridae]
- Aeger libanensis, Roger 1946 [Aegeridae]
- Aeger macropus, Garassino and Teruzzi 1990 [Aegeridae]
- Aeger muensteri, Garassino and Teruzzi 1990 [Aegeridae]
- Aeger robustus, Garassino and Teruzzi 1990 [Aegeridae]
- Aeger rostrospinatus, Garassino and Teruzzi 1990 [Aegeridae]
- Aeger spinipes, Desmarest 1822 [Aegeridae]
- Aeger tipularius, Schlotheim 1822 [Aegeridae]
- Aegloidea, superfamily, Dana 1852 [Decapoda]
- Aenigmastacus, C. E. Schweitzer et al. 2010 [Parastacidae]
- Aenigmastacus crandalli, C. E. Schweitzer et al. 2010 [Parastacidae]
- Agononida, Baba and Saint Laurent 1996 [Galatheidae]
- Agononida cerovensis, Hyzny and Schlogl 2010 [Galatheidae]
- Agostella, Osso-Morales 2010 [unclassified genus]
- Agostella, Osso-Morales 2010 [Tumidocarcinidae]
- Agostella terrersensis, Osso-Morales 2010 [Agostella]
- Agostocarididae, family, Hart and Manning 1986 [Decapoda]
- Albertoppelia, Schweigert and Garassino 2004 [Penaeidae]
- Albertoppelia kuempeli, Schweigert and Garassino 2004 [Penaeidae]
- Albunea, Weber 1795 [Albuneidae]
- Albunea asymmetrica, Muller 1978 [Albuneidae]
- Albunea cuisiana, Beschin and De Angeli 1984 [Albuneidae]
- Albunea hahnae, Blow and Manning 1996 [Albuneidae]
- Albunea turritellacola, Fraaije et al. 2008 [Albuneidae]
- Alburnia, Bravo and Garassino 1998 [Palaemonidae]
- Alburnia petinensis, Bravi and Garassino 1998 [Palaemonidae]
- Alcmonacaris, Polz 2009 [Decapoda]
- Alcmonacaris winkleri, Polz 2009 [Decapoda]
- Alpheidae, family, Rafinesque 1815 [Decapoda]
- Alpheoidea, superfamily, Rafinesque 1815 [Decapoda]
- Alvinocarididae, family, Christoffersen 1986 [Decapoda]
- Ameridromia, Blow and Manning 1996 [Decapoda]
- Ameridromia hyneorum, Blow and Manning 1996 [Decapoda]
- Ammopylocheles, Van Bakel 2008 [Decapoda]
- Ammopylocheles mclaughlini, Van Bakel 2008 [Decapoda]
- Ampliura simplex, Morris and Collins 1991 [Leucosiidae]
- Anaglyptus, A. Milne-Edwards 1873 [Decapoda]
- Anaglyptus delfortrei, A. Milne-Edwards 1873 [Decapoda]
- Anapagurus carinatus, Harvey 1998 [Paguridae]
- Anapagurus miocenicus, Muller 1978 [Paguridae]
- Anatolikos itoigawai, Karasawa 1990 [Cancridae]
- Anatolikos japonicus, Ortmann 1893 [Cancridae]
- Anchistioididae, family, Borradaile 1915 [Decapoda]
- Andorina elegans, Lorenthey 1901 [Leucosiidae]
- Anisospinos, C. Schweitzer and R. Feldmann 2000 [Cancridae]
- Anisospinos berglundi, C. Schweitzer and R. Feldmann 2000 [Cancridae]
- Anisospinos odosensis, Imaizumi 1962 [Cancridae]
- Anisospinos wahkiakumensis, Berglund and Goedert 1992 [Cancridae]
- Annieporcellana, Fraaaije 2008 [Porcellanidae]
- Annieporcellana dhondtae, Fraaije 2008 [Porcellanidae]
- Annuntidiogenes, Fraaije 2008 [Diogenidae]
- Annuntidiogenes ruizdegaonai, Fraaije 2008 [Diogenidae]
- Annuntidiogenes sunuciorum, Fraaije 2008 [Diogenidae]
- Annuntidiogenes worfi, Fraaije 2009 [Diogenidae]
- Anomalifrontinae, subfamily, Rathbun 1929 [Xenophthalmidae]
- Antarcticheles, Aguirre-Urreta 1990 [Polychelidae]
- Antarcticheles antarcticus, Aguirre-Urreta 1990 [Polychelidae]
- Antarctidromia inflata, Forster 1985 [Homolodromiidae]
- Antarctiprosopon, C. Schweitzer and R. Feldmann 2010 [Longodromitidae]
- Antarctiprosopon chaneyi, R. Feldmann and Wilson 1988 [Longodromitidae]
- Antarctomithrax thomsoni, R. Feldmann 1994 [Homolidae]
- Antrimpos atavus, Bill 1914 [Penaeidae]
- Antrimpos intermedius, Oppel 1862 [Penaeidae]
- Antrimpos juvavensis, Van Straelen 1940 [Penaeidae]
- Antrimpos latipes, Oppel 1862 [Penaeidae]
- Antrimpos liliani, Van Straelen 1923 [Penaeidae]
- Antrimpos meyeri, Oppel 1862 [Penaeidae]
- Antrimpos mirigiolensis, Etter 1994 [Penaeidae]
- Antrimpos nonodon, Munster 1839 [Penaeidae]
- Antrimpos noricus, Pinna 1974 [Penaeidae]
- Antrimpos secretaniae, Carriol and Riou 1991 [Penaeidae]
- Antrimpos sharpi, Woodward 1869 [Penaeidae]
- Antrimpos speciosus, Munster 1839 [Penaeidae]
- Antrimpos undenarius, Schweigert 2001 [Penaeidae]
- Antrocarcininae, subfamily, Ng and Chia 1994 [unclassified subfamily]
- Aperiopyxis, Schweigert 2010 [Axiidae]
- Aperiopyxis wulfetzergiebeli, Schweigert 2010 [Axiidae]
- Araripecarcinus, Martins-Neto 1987 [Palaeocorystidae]
- Araripecarcinus ferreirae, Martins-Neto 1987 [Palaeocorystidae]
- Arcania cornuta, MacGilchrist 1905 [Leucosiidae]
- Arcania elongata, Yokoya 1933 [Leucosiidae]
- Arcania globata, Stimpson 1858 [Leucosiidae]
- Arcania shuishuni, Hu and Tao 1985 [Leucosiidae]
- Arcania undecimspinosa, De Haan 1841 [Leucosiidae]
- Archaeocarabus bowerbanki, McCoy 1849 [Palinuridae]
- Archaeocarabus whitfieldi, Pilsbry 1901 [Palinuridae]
- Archaeocypoda veronensis, Secretan 1975 [Dorippidae]
- Archaeogeryon corsolini, Casadio 2004 [Geryonidae]
- Archaeogeryon fuegianus, Colosi 1924 [Geryonidae]
- Archaeogeryon latus, Glaessner 1933 [Geryonidae]
- Archaeogeryon lophos, R. Feldmann 1995 [Geryonidae]
- Archaeogeryon navidad, R. Feldmann 2005 [Geryonidae]
- Archaeopalinurus, Pinna 1974 [Palinuridae]
- Archaeopalinurus levis, Pinna 1974 [Palinuridae]
- Archaeoplax signifera, Stimpson 1863 [Geryonidae]
- Archaeopus ezoensis, Nagao 1941 [Retroplumidae]
- Archaeopus lunicarina, C. Schweitzer and R. Feldmann 2001 [Retroplumidae]
- Archaeopus schenki, Van Straelen 1939 [Retroplumidae]
- Archaeozius, C. Schweitzer 2003 [unclassified genus]
- Archaeozius occidentalis, C. Schweitzer 2003 [Archaeozius]
- Archeosolenocera straeleni, Carriol and Riou 1991 [Decapoda]
- Arenaeus, Dana 1851 [Portunidae]
- Arenaeus cribrarius, Lamarck 1818 [Portunidae]
- Arges, De Haan 1835 [Pilumnidae]
- Arges parallelus, De Haan 1835 [Pilumnidae]
- Aristeidae, family, Wood-Mason 1891 [Decapoda]
- Ashtoret, Galil and Clark 1994 [Matutidae]
- Astacodes falcifer, Bell 1863 [Palinuridae]
- Astacodes kamptneri, Bachmayer 1959 [Palinuridae]
- Astacodes strambergensis, Bachmayer 1959 [Palinuridae]
- Astacodes woodwardi, Fritsch and Kafka 1887 [Palinuridae]
- Astacoidea, superfamily, Latreille 1802 [Decapoda]
- Astacopsis franklini, Gray 1845 [Parastacidae]
- Astacus edwardsi, Van Straelen 1928 [Astacidae]
- Astacus laevissimus, Fritsch and Kafka 1887 [Astacidae]
- Astacus multicavatus, Bell 1863 [Astacidae]
- Astacus pallipes, Lereboullet 1858 [Astacidae]
- Asthenognathinae, subfamily, Stimpson 1858 [Varunidae]
- Asthenognathus, Stimpson 1858 [Varunidae]
- Asthenognathus cornishorum, C. Schweitzer and R. Feldmann 1999 [Pinnotheridae]
- Asthenognathus globosa, Karasawa 1990 [Pinnotheridae]
- Asthenognathus laverdensis, De Angeli and Garassino 2006 [Pinnotheridae]
- Asthenognathus rakosensis, Muller 2006 [Pinnotheridae]
- Atelecyclus elegans, Ristori 1896 [Atelecyclidae]
- Atelecyclus rotundatus, Olivi 1792 [Atelecyclidae]
- Atelecyclus rugosus, Desmarest 1822 [Atelecyclidae]
- Atergatis dilatatus, De Haan 1835 [Xanthidae]
- Atergatis dubius, A. Milne-Edwards 1862 [Xanthidae]
- Atergatis granulatus, De Man 1889 [Xanthidae]
- Atergatis latissimus, H. Milne-Edwards 1834 [Xanthidae]
- Atergatis pyroticus, Hu and Tao 1996 [Xanthidae]
- Atoportuninae, subfamily, Stevcic 2005 [Portunidae]
- Atyoidea, superfamily, De Haan 1849 [Decapoda]
- Aulacopodia, Bosquet 1854 [Decapoda]
- Aulacopodia riemsdyki, Bosquet 1854 [Decapoda]
- Austromunida, C. Schweitzer and R. Feldmann 2000 [Galatheidae]
- Austromunida casadioi, C. Schweitzer and R. Feldmann 2000 [Galatheidae]
- Austropotamobius, Skorikov 1907 [Astacidae]
- Austropotamobius llopisi, Via 1971 [Astacidae]
- Axianassidae, family, Schmitt 1924 [Decapoda]
- Axiidea, infraorder, Saint Laurent 1979 [Decapoda]
- Axiopsis, Borradaile 1903 [Axiidae]
- Axiopsis eximia, Kensley and Williams 1990 [Axiidae]
- Axius fontannesi, A. Milne-Edwards 1885 [Axiidae]
- Balcacarcinus, Karasawa and C. Schweitzer 2006 [Panopeidae]
- Balcacarcinus attenuatus, Bittner 1875 [Panopeidae]
- Banareia, A. Milne-Edwards 1869 [Xanthidae]
- Banareia kraussi, Heller 1861 [Xanthidae]
- Banareia odhneri, Sakai 1974 [Xanthidae]
- Bartethusa hepatica, Quayle and Collins 1981 [Dorippidae]
- Basinotopidae, family, Karasawa et al. 2010 [Decapoda]
- Basinotopus, McCoy 1849 [Basinotopidae]
- Basinotopus lamarckii, Desmarest 1822 [Basinotopidae]
- Bathypalaemonellidae, family, Saint Laurent 1985 [Decapoda]
- Bechleja bahiaensis, Martins-Neto and Mezzalira 1991 [Palaemonidae]
- Bechleja inopinata, Housa 1957 [Palaemonidae]
- Bechleja robusta, Martins-Neto and Mezzalira 1991 [Palaemonidae]
- Bechleja rostrata, Feldmann 1981 [Palaemonidae]
- Bellhexapus, De Angeli et al. 2010 [Hexapodidae]
- Bellhexapus granulatus, De Angeli et al. 2010 [Hexapodidae]
- Belliidae, family, Dana 1852 [Decapoda]
- Belliinae, subfamily, Dana 1852 [Belliidae]
- Bellioidea, superfamily, Dana 1852 [Decapoda]
- Benhesicymidae, family, Wood-Mason 1891 [unclassified family]
- Benthesicymidae, family, Wood-Mason 1891 [unclassified family]
- Benthesicymus libanensis, Brocchi 1875 [Decapoda]
- Beripetrolisthes, De Angeli and Garassino 2002 [Porcellanidae]
- Beripetrolisthes mulleri, De Angeli and Garassino 2002 [Porcellanidae]
- Bernuffius, De Angeli et al. 2010 [Xanthidae]
- Bernuffius ornatus, De Angeli et al. 2010 [Xanthidae]
- Beurlenia, Martins-Neto and Mezzalira 1991 [Palaemonidae]
- Beurlenia araripensis, Martin-Neto and Mezzalira 1991 [Palaemonidae]
- Biarctus, Holthuis 2002 [Scyllaridae]
- Biarctus vitiensis, Dana 1852 [Scyllaridae]
- Bicarinocarcinus, Glaessner and Secretan 1987 [Carinocarcinoididae]
- Bicarinocarcinus collinsi, Glaessner and Secretam 1987 [Carinocarcinoididae]
- Bicarinocarcinus tumidus, Collins 2003 [Carinocarcinoididae]
- Bicornisranina, Nyborg and Fam 2008 [Palaeocorystidae]
- Bicornisranina bocki, Nyborg and Fam 2008 [Palaeocorystidae]
- Binkhorstia euglypha, Collins 1995 [Longusorbiidae]
- Binkhorstia ubaghsii, Van Binkhorst 1857 [Longusorbiidae]
- Birgus, Leach 1816 [Coenobitidae]
- Birgus latro, Linnaeus 1767 [Coenobitidae]
- Bittnereus, Beschin et al. 2007 [Panopeidae]
- Bittnereus vicentinus, Bittner 1875 [Panopeidae]
- Bittnerilia, De Angeli and Garassino 2003 [Parthenopidae]
- Bittnerilia dentata, Beschin 2005 [Parthenopidae]
- Bittnerilia eocaena, Bittner 1883 [Parthenopidae]
- Bittnerilia eocenica, Bittner 1883 [Parthenopidae]
- Blaculla nikoides, Munster 1839 [Decapoda]
- Blaculla sieboldi, Oppel 1862 [Decapoda]
- Blepharipodidae, family, Koyko 2002 [Decapoda]
- Bombur complicatus, Munster 1839 [Penaeidae]
- Boschettia, Busulini 2003 [Macropipidae]
- Boschettia giampietroi, Busulini 2003 [Macropipidae]
- Brachynotus corallinus, Beschin et al. 2007 [Varunidae]
- Brachynotus februarius, Muller 1974 [Varunidae]
- Brachynotus oligocenicus, De Angeli et al. 2010 [Varunidae]
- Branchiocarcinus cornatus, Vega et al. 1995 [Carcineretidae]
- Branchiolambrus altus, Rathbun 1908 [Parthenopidae]
- Branchioplax albertii, De Angeli and Beschin 2002 [Mathildellidae]
- Branchioplax ballingi, Remy 1954 [Mathildellidae]
- Branchioplax bidentata, Birshtein 1956 [Mathildellidae]
- Branchioplax concinna, Quayle and Collins 1981 [Mathildellidae]
- Branchioplax parva, Beschin et al. 2007 [Mathildellidae]
- Branchioplax pentagonalis, Yokoyama 1911 [Mathildellidae]
- Branchioplax rossii, De Angeli and Tessier 2008 [Mathildellidae]
- Branchioplax sulcata, Muller and Collins 1991 [Mathildellidae]
- Brazilomunida, Martins-Neto 2001 [Galatheidae]
- Brazilomunida brasiliensis, Beurlen 1965 [Galatheidae]
- Brecanclawu, Schweitzer and Feldmann 2001 [Callianassidae]
- Brecanclawu rathbunae, Schweitzer and Felmann 2001 [Callianassidae]
- Bresiliidae, family, Calman 1896 [Decapoda]
- Bresilioidea, superfamily, Calman 1896 [Decapoda]
- Brome, Munster 1839 [Decapoda]
- Brome ventrosa, Munster 1839 [Decapoda]
- Bryocarpilius, C. E. Schweitzer et al. 2010 [Carpiliidae]
- Bryocarpilius apsidorsalis, C. E. Schweitzer et al. 2010 [Carpiliidae]
- Bryocarpilius aquilinus, Collins and Morris 1973 [Carpiliidae]
- Budapanopeus, Muller and Collins 1991 [Pilumnidae]
- Budapanopeus denticulatus, Muller and Collins 1996 [Pilumnidae]
- Buergerocaris, Schweigert and Garassino 2004 [Decapoda]
- Buergerocaris psittacoides, Schweigert and Garassino 2004 [Decapoda]
- Bylgia haeberleini, Munster 1839 [Decapoda]
- Bylgia hexadon, Munster 1839 [Decapoda]
- Bylgia ruedeli, Schweigert and Garassino 2004 [Decapoda]
- Bylgia spinosa, Munster 1839 [Decapoda]
- Bythograeidae, family, Williams 1980 [Decapoda]
- Bythograeoidea, superfamily, Williams 1980 [Decapoda]
- Calappa chungii, Hu and Tao 1985 [Calappidae]
- Calappa earlei, Withers 1924 [Calappidae]
- Calappa flammea, Herbst 1794 [Calappidae]
- Calappa gallus, Herbst 1803 [Calappidae]
- Calappa granulata, Linnaeus 1758 [Calappidae]
- Calappa heberti, Brocchi 1883 [Calappidae]
- Calappa hepatica, Linnaeus 1758 [Calappidae]
- Calappa laraensis, Van Straelen 1933 [Calappidae]
- Calappa lophos, Herbst 1795 [Calappidae]
- Calappa madoerensis, Van Straelen 1938 [Calappidae]
- Calappa oboui, Hu and Tao 1996 [Calappidae]
- Calappa praelata, Lorenthey 1929 [Calappidae]
- Calappa pustulosa, Alcock 1896 [Calappidae]
- Calappa restricta, A. Milne-Edwards 1873 [Calappidae]
- Calappa robertsi, Ross 1964 [Calappidae]
- Calappa sahelensis, Van Straelen 1936 [Calappidae]
- Calappa sangiranensis, Van Straelen 1938 [Calappidae]
- Calappa sexapinosa, Morris and Collins 1991 [Calappidae]
- Calappa springeri, Rathbun 1931 [Calappidae]
- Calappa zinsmeisteri, R. Feldmann and Wilson 1988 [Calappidae]
- Calappa zurcheri, Bouvier 1899 [Calappidae]
- Calappilia bohmi, Glaessner 1929 [Calappidae]
- Calappilia bonairensis, Van Straelen 1933 [Calappidae]
- Calappilia borneoensis, Van Straelen 1924 [Calappidae]
- Calappilia brooksi, Ross and Scolaro 1964 [Calappidae]
- Calappilia circularis, Beurlen 1958 [Calappidae]
- Calappilia dacica, Bittner 1893 [Calappidae]
- Calappilia diglypta, Stenzel 1934 [Calappidae]
- Calappilia gemmata, Beschin 1994 [Calappidae]
- Calappilia gorodiskii, Remy 1959 [Calappidae]
- Calappilia incisa, Bittner 1886 [Calappidae]
- Calappilia mainii, Allasinaz 1987 [Calappidae]
- Calappilia matzkei, Bachmayer 1962 [Calappidae]
- Calappilia maxwelli, Feldmann 1993 [Calappidae]
- Calappilia ocalanus, Ross 1964 [Calappidae]
- Calappilia perlata, Noetling 1885 [Calappidae]
- Calappilia scopuli, Quayle and Collins 1981 [Calappidae]
- Calappilia sexdentata, A. Milne-Edwards 1876 [Calappidae]
- Calappilia subovata, Beschin 2002 [Calappidae]
- Calappilia tridentata, Beurlen 1939 [Calappidae]
- Calappilia verrucosa, A. Milne-Edwards 1873 [Calappidae]
- Calappilia vicetina, Fabiani 1910 [Calappidae]
- Callianassa affinis, A. Milne-Edwards 1860 [Callianassidae]
- Callianassa alaica, Birshtein 1956 [Callianassidae]
- Callianassa almerai, Muller 1993 [Callianassidae]
- Callianassa americana, Woods 1922 [Callianassidae]
- Callianassa armata, A. Milne-Edwards 1870 [Callianassidae]
- Callianassa articulata, Rathbun 1906 [Callianassidae]
- Callianassa atlantica, Rathbun 1926 [Callianassidae]
- Callianassa atrox, Bittner 1893 [Callianassidae]
- Callianassa awakina, Glaessner 1960 [Callianassidae]
- Callianassa bakeri, Glaessner 1948 [Callianassidae]
- Callianassa beberibae, Beurlen 1962 [Callianassidae]
- Callianassa birmanica, Noetling 1901 [Callianassidae]
- Callianassa bonjouri, Etallon 1861 [Callianassidae]
- Callianassa brazoensis, Stenzel 1934 [Callianassidae]
- Callianassa brevimanus, Beurlen 1939 [Callianassidae]
- Callianassa brocchii, Lorenthey 1898 [Callianassidae]
- Callianassa burckhardti, Bohm 1911 [Callianassidae]
- Callianassa calaritana, Ristori 1896 [Callianassidae]
- Callianassa canavarii, Ristorri 1889 [Callianassidae]
- Callianassa chalmasii, Brocchi 1883 [Callianassidae]
- Callianassa chanabadica, Birshtein 1956 [Callianassidae]
- Callianassa clarki, Pilsbry 1916 [Callianassidae]
- Callianassa congolae, Secretan 1970 [Callianassidae]
- Callianassa conradi, Pilsbry 1901 [Callianassidae]
- Callianassa craterifera, Lorenthey 1926 [Callianassidae]
- Callianassa creagrachir, Schafhautl 1863 [Callianassidae]
- Callianassa danai, Hall and Meek 1855 [Callianassidae]
- Callianassa depressiva, Secretan 1970 [Callianassidae]
- Callianassa desmarestiana, A. Milne-Edwards 1860 [Callianassidae]
- Callianassa edwardsi, Via 1959 [Callianassidae]
- Callianassa elegans, Bohm 1922 [Callianassidae]
- Callianassa erecta, Bohm 1926 [Callianassidae]
- Callianassa espichelsnsis, Veiga Ferreira 1961 [Callianassidae]
- Callianassa ferox, Bittner 1893 [Callianassidae]
- Callianassa floriana, Glaessner 1928 [Callianassidae]
- Callianassa fortis, Bohm 1922 [Callianassidae]
- Callianassa fraasi, Noetling 1885 [Callianassidae]
- Callianassa frangens, Bohm 1922 [Callianassidae]
- Callianassa gigantea, Withers 1924 [Callianassidae]
- Callianassa glabra, Lorenthey 1929 [Callianassidae]
- Callianassa hayanoi, Karasawa 2010 [Callianassidae]
- Callianassa heberti, A. Milne-Edwards 1860 [Callianassidae]
- Callianassa infracretacea, Tribolet 1874 [Callianassidae]
- Callianassa inglisestris, Roberts 1953 [Callianassidae]
- Callianassa inornata, Nagao and Huzioka 1938 [Callianassidae]
- Callianassa isikariensis, Nagao and Otatume 1938 [Callianassidae]
- Callianassa jahringensis, Glaessner 1928 [Callianassidae]
- Callianassa kerepesiensis, Muller 1976 [Callianassidae]
- Callianassa kraussei, Bohm 1911 [Callianassidae]
- Callianassa kraussi, Stebbing 1985 [Callianassidae]
- Callianassa latidigitata, Rathbun 1919 [Callianassidae]
- Callianassa ledae, Fritsch 1871 [Callianassidae]
- Callianassa longa, Noetling 1885 [Callianassidae]
- Callianassa lusitanica, Veiga Ferreira 1954 [Callianassidae]
- Callianassa macrodactylus, A. Milne-Edwards 1860 [Callianassidae]
- Callianassa masanorii, Karasawa 1998 [Callianassidae]
- Callianassa massarandubae, Beurlen 1962 [Callianassidae]
- Callianassa maxima, A. Milne-Edwards 1860 [Callianassidae]
- Callianassa megachir, Schafhautl 1863 [Callianassidae]
- Callianassa menziesi, Withers 1926 [Callianassidae]
- Callianassa meridionalis, Ball 1960 [Callianassidae]
- Callianassa michelotti, A. Milne-Edwards 1860 [Callianassidae]
- Callianassa minor, Fischer-Benzon 1866 [Callianassidae]
- Callianassa mokkatamensis, Noetling 1885 [Callianassidae]
- Callianassa mottai, Beurlen 1962 [Callianassidae]
- Callianassa munieri, Brocchi 1883 [Callianassidae]
- Callianassa nilotica, Fraas 1867 [Callianassidae]
- Callianassa norica, Glaessner 1928 [Callianassidae]
- Callianassa nuda, Beurlen 1939 [Callianassidae]
- Callianassa oregonensis, Dana 1849 [Callianassidae]
- Callianassa orientalis, A. Milne-Edwards 1860 [Callianassidae]
- Callianassa oroszyi, Bachmayer 1954 [Callianassidae]
- Callianassa orthodactylus, Schafhautl 1863 [Callianassidae]
- Callianassa panamensis, Glaessner 1929 [Callianassidae]
- Callianassa parinasensis, Woods 1922 [Callianassidae]
- Callianassa parisiensis, A. Milne-Edwards 1870 [Callianassidae]
- Callianassa pedemontana, Crema 1895 [Callianassidae]
- Callianassa primaeva, Philippi 1887 [Callianassidae]
- Callianassa prisca, A. Milne-Edwards 1860 [Callianassidae]
- Callianassa pseudofraasi, Lorenthey 1929 [Callianassidae]
- Callianassa pseudonilotica, Lorenthey 1929 [Callianassidae]
- Callianassa pseudorakosiensis, Lorenthey 1929 [Callianassidae]
- Callianassa pugnax, Bohm 1922 [Callianassidae]
- Callianassa pustulata, Withers 1926 [Callianassidae]
- Callianassa rakosiensis, Lorenthey 1898 [Callianassidae]
- Callianassa rapax, Bittner 1893 [Callianassidae]
- Callianassa rovasendae, Crema 1895 [Callianassidae]
- Callianassa roztoczensis, Muller 1996 [Callianassidae]
- Callianassa seefriedi, Ammon 1905 [Callianassidae]
- Callianassa simplex, Bittner 1893 [Callianassidae]
- Callianassa sismondai, A. Milne-Edwards 1860 [Callianassidae]
- Callianassa songoensis, Bohm 1922 [Callianassidae]
- Callianassa spinosa, Tribolet 1876 [Callianassidae]
- Callianassa stimpsoni, Gabb 1864 [Callianassidae]
- Callianassa subplana, Withers 1924 [Callianassidae]
- Callianassa subspinosa, Glaessner 1929 [Callianassidae]
- Callianassa subterranea, Montagu 1808 [Callianassidae]
- Callianassa szobensis, Muller 1984 [Callianassidae]
- Callianassa taiwanica, Hu and Tao 1996 [Callianassidae]
- Callianassa tanakai, Imaizumi 1957 [Callianassidae]
- Callianassa tayamai, Imaizumi 1952 [Callianassidae]
- Callianassa transversoplicata, Noetling 1885 [Callianassidae]
- Callianassa trechmanni, Withers 1924 [Callianassidae]
- Callianassa turkestanica, Birshtein 1956 [Callianassidae]
- Callianassa ulrichi, C. A. White 1880 [Callianassidae]
- Callianassa uncifera, Harbort 1905 [Callianassidae]
- Callianassa urgoneensis, Lorenthey 1929 [Callianassidae]
- Callianassa velox, Bittner 1893 [Callianassidae]
- Callianassa vidali, Via 1959 [Callianassidae]
- Callianassa vorax, Bittner 1893 [Callianassidae]
- Callianassa waikurana, Glaessner 1960 [Callianassidae]
- Callianassa wechesensis, Stenzel 1934 [Callianassidae]
- Callianassa yagii, Imaizumi 1957 [Callianassidae]
- Callianideidae, family, Kossmann 1880 [Decapoda]
- Callianopsis clallamensis, Withers 1924 [Ctenochelidae]
- Callianopsis elongatodigitata, Nagao 1941 [Ctenochelidae]
- Callianopsis inornatus, C. Schweitzer and R. Feldmann 2001 [Ctenochelidae]
- Callianopsis kusiroensis, Nagao 1941 [Ctenochelidae]
- Callianopsis marianae, Hyzny and Schlogl 2010 [Ctenochelidae]
- Callianopsis microspineus, Beschin 2005 [Ctenochelidae]
- Callianopsis muratai, Nagao 1941 [Ctenochelidae]
- Callianopsis titaensis, Nagao 1941 [Ctenochelidae]
- Callichirus bertalani, Hyzny and Muller 2010 [Callianassidae]
- Callichirus islagrande, Schmitt 1935 [Callianassidae]
- Callichirus major, Say 1818 [Callianassidae]
- Callichirus pustulosa, Withers 1926 [Callianassidae]
- Callichirus symmetricus, R. Feldmann and Zinsmeister 1984 [Callianassidae]
- Callinectes bellicosus, Stimpson 1862 [Portunidae]
- Callinectes jamaicensis, Withers 1924 [Portunidae]
- Callinectes paraensis, Beurlen 1958 [Portunidae]
- Callinectes quilonensis, Verma 1977 [Portunidae]
- Callinectes sapidus, Rathbun 1896 [Portunidae]
- Callinectes toxodes, Ordway 1863 [Portunidae]
- Calmaniinae, subfamily, Stevcic 2005 [unclassified subfamily]
- Calocarididae, family, Ortmann 1891 [Decapoda]
- Caloxanthus formosus, A. Milne-Edwards 1864 [Feldmanniidae]
- Caloxanthus kuypersi, Fraaye 1996 [Feldmanniidae]
- Caloxanthus ornata, Fischer-Benzon 1866 [Feldmanniidae]
- Caloxanthus purleyensis, Withers 1928 [Feldmanniidae]
- Caloxanthus simplex, Secretan 1964 [Feldmanniidae]
- Caloxanthus wrighti, Collins and Breton 2010 [Feldmanniidae]
- Calteagalathea, De Angeli and Garassino 2006 [Galatheidae]
- Calteagalathea friulana, De Angeli and Garassino 2006 [Galatheidae]
- Camarocarcinus arnesoni, Holland and Cvancara 1958 [Camarocarcinidae]
- Camarocarcinus obtusus, Jakobsen and Collins 1979 [Camarocarcinidae]
- Camarocarcinus quinquetuberculatus, Collins and Rasmussen 1992 [Camarocarcinidae]
- Cambaridae, family, Hobbs 1942 [Decapoda]
- Camptandriidae, family, Stimpson 1858 [Decapoda]
- Campylonotidae, family, Sollaud 1913 [Decapoda]
- Campylonotoidea, superfamily, Sollaud 1913 [Decapoda]
- Campylostoma matutiforme, Bell 1858 [Cenomanocarcinidae]
- Cancer allisoni, Nations 1975 [Cancridae]
- Cancer bellianus, Johnson 1861 [Cancridae]
- Cancer borealis, Stimpson 1862 [Cancridae]
- Cancer burtini, Galeotii 1837 [Cancridae]
- Cancer chaneyi, Nations 1975 [Cancridae]
- Cancer coosensis, Nations 1975 [Cancridae]
- Cancer durhami, Nations 1975 [Cancridae]
- Cancer fissus, Rathbun 1908 [Cancridae]
- Cancer fujinaensis, Sakumoto et al. 1992 [Cancridae]
- Cancer garthi, Nations 1975 [Cancridae]
- Cancer illyricus, Bittner 1883 [Cancridae]
- Cancer irroratus, Say 1817 [Cancridae]
- Cancer johngarthi, Carvacho 1989 [Cancridae]
- Cancer marri, Nations 1975 [Cancridae]
- Cancer meticurensis, Thurmann 1853 [Cancridae]
- Cancer modestus, Fritsch and Kafka 1887 [Cancridae]
- Cancer pagurus, Linnaeus 1758 [Cancridae]
- Cancer parvidens, Collins and Fraaye 1991 [Cancridae]
- Cancer porteri, Rathbun 1930 [Cancridae]
- Cancer proavitus, Packard 1900 [Cancridae]
- Cancer productus, Randall 1839 [Cancridae]
- Cancer reversus, Fritsch and Kafka 1887 [Cancridae]
- Cancer santosi, Rathbun 1937 [Cancridae]
- Cancer solitarius, Fritsch and Kafka 1887 [Cancridae]
- Cancer spinosus, Ristori 1886 [Cancridae]
- Cancer styriacus, Bittner 1884 [Cancridae]
- Cancer tomowoi, Karasawa 1990 [Cancridae]
- Cancer vancalsteri, Van Bakel et al. 2003 [Cancridae]
- Cancer villabersiani, Gary 1907 [Cancridae]
- Cancer whitfieldi, Pilsbry 1901 [Cancridae]
- Cancer yanceyi, Nations 1975 [Cancridae]
- Cancrinae, subfamily, Latreille 1802 [Cancridae]
- Cancrinidae, family, Beurlen 1930 [Palinuroidea]
- Cancrinos claviger, Munster 1839 [Cancrinidae]
- Cancrinos libanensis, Garissino and Schweiget 2006 [Cancrinidae]
- Cancrinos sahelalmae, Roger 1944 [Cancrinidae]
- Cancrixantho pyrenaicus, Van Straelen 1934 [Carcineretidae]
- Caphyrinae, subfamily, Paulson 1875 [Portunidae]
- Caprocancer, Muller and Collins 1991 [Decapoda]
- Caprocancer altus, Muller and Collins 1991 [Decapoda]
- Carcineretes planetarius, Vega 1997 [Carcineretidae]
- Carcineretes woolacotti, Withers 1922 [Carcineretidae]
- Carcinidae, family, MacLeay 1838 [Decapoda]
- Carcininae, subfamily, MacLeay 1838 [Carcinidae]
- Carcinoplax antiqua, Ristori 1889 [Goneplacidae]
- Carcinoplax granulimanus, Karasawa and Inoue 1992 [Goneplacidae]
- Carcinoplax imperfecta, Karasawa and Inoue 1992 [Goneplacidae]
- Carcinoplax longimana, De Haan 1833 [Goneplacidae]
- Carcinoplax mongosungi, Hu and Tao 1985 [Goneplacidae]
- Carcinoplax prepurpurea, Hu and Tao 2000 [Goneplacidae]
- Carcinoplax prisca, Imaizumi 1961 [Goneplacidae]
- Carcinoplax proavita, Glaessner 1960 [Goneplacidae]
- Carcinoplax purpurea, Rathbun 1914 [Goneplacidae]
- Carcinoplax shukumi, Hu and Tao 1985 [Goneplacidae]
- Carcinoplax temikoensis, R. Feldmann and Maxwell 1990 [Goneplacidae]
- Carcinoplax thongi, Hu and Tao 1985 [Goneplacidae]
- Carcinoplax tsengi, Hu and Tao 1996 [Goneplacidae]
- Carcinoplax wuhsini, Hu and Tao 1999 [Goneplacidae]
- Carcinus agnoensis, Beschin 2005 [Carcinidae]
- Carcinus maenus, Linnaeus 1767 [Carcinidae]
- Cardirhynchus spinosus, Schluter 1862 [Decapoda]
- Cardisoma guanhumi, Latreille 1828 [Gecarcinidae]
- Caridina, Edwards 1879 [Atyidae]
- Carinacaris teruzzii, Garassino 1994 [Decapoda]
- Carinocarcinoides, Karasawa and Fudouji 2000 [Carinocarcinoididae]
- Carinocarcinoides angustifrons, Karasawa 1993 [Carinocarcinoididae]
- Carinocarcinoides carinatus, Karasawa and Fudouji 2000 [Carinocarcinoididae]
- Carinocarcinus, Lorenthey 1898 [Panopeidae]
- Carinocarcinus zitteli, Lorenthey 1898 [Panopeidae]
- Carpilius convexus, Forskal 1775 [Carpiliidae]
- Carpilius corallinus, Herbst 1783 [Carpiliidae]
- Carpilius lwangi, Hu and Tao 2000 [Carpiliidae]
- Carpilius maculatus, Linnaeus 1758 [Carpiliidae]
- Carpilius petreus, Beschin et al. 2007 [Carpiliidae]
- Carpopenaeidae, family, Garassino 1994 [Decapoda]
- Carpopenaeus callirostris, Glaessner 1946 [Carpopenaeidae]
- Carpopenaeus peterbuergeri, Schweigert and Garassino 2005 [Carpopenaeidae]
- Carpopenaeus septemspinatus, Dames 1886 [Carpopenaeidae]
- Cartethusa, Quayle and Collins 1981 [Dorippidae]
- Carupa, Dana 1851 [Portunidae]
- Carupa tenuipes, Dana 1852 [Portunidae]
- Carupinae, subfamily, Paulson 1875 [Portunidae]
- Catoptridae, family, Borradaile 1902 [Decapoda]
- Cedrillosia, Garassino et al. 2009 [Glypheidae]
- Cedrillosia jurassica, Garassino et al. 2009 [Glypheidae]
- Cenocorystes, Collins and Breton 2009 [Palaeocorystidae]
- Cenocorystes fournieri, Collins and Breton 2009 [Palaeocorystidae]
- Cenomanocarcinidae, family, D. Guinot et al. 2008 [Decapoda]
- Cenomanocarcinus armatus, Rathbun 1935 [Cenomanocarcinidae]
- Cenomanocarcinus disimmilis, Collins 2010 [Cenomanocarcinidae]
- Cenomanocarcinus hierosolymitanus, Avnimelech 1961 [Cenomanocarcinidae]
- Cenomanocarcinus inflatus, Van Straelen 1936 [Cenomanocarcinidae]
- Cenomanocarcinus multituberculatus, Joleaud and Hsu 1935 [Cenomanocarcinidae]
- Cenomanocarcinus siouxensis, R. Feldmann 1976 [Cenomanocarcinidae]
- Cenomanocarcinus tenuicarinatus, Collins 2010 [Cenomanocarcinidae]
- Ceronnectes boeckhi, Lorenthey 1898 [Cancridae]
- Ceronnectes pusillinus, Secretan 1971 [Cancridae]
- Chaceon heimertingensis, Bachmayer and Wagner 1957 [Geryonidae]
- Chaceon helmstedtense, Bachmayer and Mundlos 1968 [Geryonidae]
- Chaceon matsushitai, Kato and Koizumi 2001 [Geryonidae]
- Chaceon miocenicus, Fraaije et al. 2005 [Geryonidae]
- Chaceon ottnangensis, Bachmayer 1953 [Geryonidae]
- Charybdis acuta, A. Milne-Edwards 1869 [Portunidae]
- Charybdis annulata, Fabricius 1798 [Portunidae]
- Charybdis antiqua, A. Milne-Edwards 1860 [Portunidae]
- Charybdis arabica, Woodward 1905 [Portunidae]
- Charybdis bimaculata, Miers 1886 [Portunidae]
- Charybdis feriata, Linnaeus 1758 [Portunidae]
- Charybdis fragillis, Muller 1978 [Portunidae]
- Charybdis gigantica, Hu and Tao 1996 [Portunidae]
- Charybdis granulata, De Haan 1833 [Portunidae]
- Charybdis japonica, A. Milne-Edwards 1861 [Portunidae]
- Charybdis kilmeri, Hu 1984 [Portunidae]
- Charybdis leei, Hu and Tao 1996 [Portunidae]
- Charybdis mathiasi, Muller 1984 [Portunidae]
- Charybdis miles, De Haan 1935 [Portunidae]
- Charybdis minuta, Hu and Tao 1996 [Portunidae]
- Charybdis monsoonis, Hu and Tao 1985 [Portunidae]
- Charybdis obtusa, Hu and Tao 1996 [Portunidae]
- Charybdis orientalis, Dana 1852 [Portunidae]
- Charybdis preferiata, Hu and Tao 1996 [Portunidae]
- Charybdis shihseihi, Hu and Tao 1979 [Portunidae]
- Charybdis sinhaleya, Deraniyagala 1958 [Portunidae]
- Chasmocarcininae, subfamily, Serene 1964 [Chasmocarcinidae]
- Chasmocarcinus guerini, Via 1959 [Chasmocarcinidae]
- Chasmocarcinus robertsi, Blow and Bailey 1992 [Chasmocarcinidae]
- Chasmocarcinus seymourensis, R. Feldmann and Zinsmeister 1984 [Chasmocarcinidae]
- Chaumastochelidae, family, Bate 1888 [unclassified family]
- Cheiragonidae, family, Ortmann 1893 [Decapoda]
- Cherpiocarcinus, Marangon and De Angeli 1977 [Orithopsidae]
- Cherpiocarcinus rostratus, Marangon and De Angeli 1997 [Orithopsidae]
- Chilenophoberidae, family, Tshudy and Babcock 1997 [Decapoda]
- Chilenophoberus, Chong and Forster 1976 [Stenochiridae]
- Chilenophoberus atacamensis, Chong and Forster 1976 [Stenochiridae]
- Chimaerastacidae, family, Amati et al. 2004 [Decapoda]
- Chimaerastacus, Amati et al. 2004 [Chimaerastacidae]
- Chimaerastacus pacifluvialis, Amati et al. 2004 [Chimaerastacidae]
- Chirinocarcinus, Karasawa and C. Schweitzer 2004 [unclassified genus]
- Chirinocarcinus wichmanni, R. Feldmann and Casadio 1995 [Chirinocarcinus]
- Chirostylidae, family, Ortmann 1892 [Decapoda]
- Chlinocephalus demissifrons, Ristori 1886 [Euryplacidae]
- Chlinocephalus subovalis, Ristori 1891 [Euryplacidae]
- Chlorodiella cytherea, Dana 1852 [Xanthidae]
- Chlorodiella juglans, Muller 1984 [Xanthidae]
- Chlorodiella junghuhni, Martin 1880 [Xanthidae]
- Chlorodiella laevissima, Dana 1852 [Xanthidae]
- Chlorodiella loczyi, Muller 1984 [Xanthidae]
- Chlorodiella mediterranea, Lorenthey 1929 [Xanthidae]
- Chlorodiella mediterranea tetenyensis, Muller 1984 [Xanthidae]
- Chlorodiella nigra, Forskal 1775 [Xanthidae]
- Chlorodiella occidentalis, Portell and Collins 2004 [Xanthidae]
- Chlorodiellinae, subfamily, Ng and Holthuis 2007 [Xanthidae]
- Chorilia yui, Hu 1984 [Epialtidae]
- Cicarnus, Karasawa and Fudouji 2000 [Carcinidae]
- Cicarnus fumiae, Karasawa and Fudouji 2000 [Carcinidae]
- Ciliopagurus, Forest 1995 [Diogenidae]
- Ciliopagurus obesus, Van Bakel et al. 2002 [Diogenidae]
- Ciliopagurus substriatiformis, Lorenthey 1929 [Diogenidae]
- Ciliopagurus tethysianus, Beschin et al. 2007 [Diogenidae]
- Clytiella spinifera, Glaessner 1931 [Clytiopsidae]
- Clytiopsis audax, Von Meyer 1834 [Clytiopsidae]
- Clytiopsis thuringica, Forster 1967 [Clytiopsidae]
- Coeloma balticum, Schluter 1879 [Mathildellidae]
- Coeloma birsteini, Ilyin 2005 [Mathildellidae]
- Coeloma credneri, Noetling 1881 [Mathildellidae]
- Coeloma dentatum, Woodward 1873 [Mathildellidae]
- Coeloma egerense, Lorenthey 1929 [Mathildellidae]
- Coeloma glabra, Woodward 1873 [Mathildellidae]
- Coeloma granulosum, A. Milne-Edwards 1881 [Mathildellidae]
- Coeloma incarinatum, Sorgenfrei 1940 [Mathildellidae]
- Coeloma isseli, Ristori 1886 [Mathildellidae]
- Coeloma latifrons, Forster and Mundlos 1982 [Mathildellidae]
- Coeloma macrodactylus, Van Straelen 1925 [Mathildellidae]
- Coeloma rupeliense, Stainier 1887 [Mathildellidae]
- Coeloma sabatium, Ristori 1886 [Mathildellidae]
- Coeloma taunicum, Von Meyer 1862 [Mathildellidae]
- Coeloma varelata, Lorenthey 1898 [Mathildellidae]
- Coeloma vigil, A. Milne-Edwards 1865 [Mathildellidae]
- Coenobita rugosus, Bouvier 1890 [Coenobitidae]
- Coenobitidae, family, Dana 1851 [Decapoda]
- Coleia antiqua, Broderip 1835 [Coleiidae]
- Coleia barrovensis, McCoy 1849 [Coleiidae]
- Coleia boboi, Garassino and Gironi 2006 [Coleiidae]
- Coleia bredonensis, Woods 1925 [Coleiidae]
- Coleia edwardsi, Moriere 1864 [Coleiidae]
- Coleia incerta, Secretan 1964 [Coleiidae]
- Coleia longipes, Fraas 1855 [Coleiidae]
- Coleia mediterranea, Pinna 1968 [Coleiidae]
- Coleia morierei, Renault 1889 [Coleiidae]
- Coleia pinnai, Teruzzi 1990 [Coleiidae]
- Coleia popeyei, Teruzzi 1990 [Coleiidae]
- Coleia sibirica, Chernyschev 1930 [Coleiidae]
- Coleia sinuata, Beurlen 1928 [Coleiidae]
- Coleia tenuichelis, Woods 1925 [Coleiidae]
- Coleia theodorii, Kuhn 1952 [Coleiidae]
- Coleia viallii, Pinna 1968 [Coleiidae]
- Coleiidae, family, Van Straelen 1924 [Decapoda]
- Collinsius, Karasawa 1993 [Chasmocarcinidae]
- Collinsius simplex, Karasawa 1993 [Chasmocarcinidae]
- Colneptunus dalloni, Van Straelen 1930 [Portunidae]
- Colneptunus hungaricus, Lorenthey 1929 [Portunidae]
- Colneptunus hungaricus lutetianus, Remy 1954 [Portunidae]
- Colpocaris, Von Meyer 1862 [Decapoda]
- Colpocaris bullatus, Von Meyer 1862 [Decapoda]
- Comoxianassa, Schweitzer et al. 2009 [Callianassidae]
- Comoxianassa haggarti, C. Schweitzer et al. 2009 [Callianassidae]
- Concavilateris, Frantescu 2010 [Konidromitidae]
- Concavilateris barbulescuae, Frantescu 2010 [Konidromitidae]
- Conleyidae, family, Stevcic 2005 [Decapoda]
- Corallianassa, Manning 1987 [Callianassidae]
- Corallianassa acucurvata, Swen 2001 [Callianassidae]
- Corallianassa rigoi, De Angeli and Garassino 2006 [Callianassidae]
- Corallicarcinus, Muller and Collins 1991 [Euryplacidae]
- Corallicarcinus planus, Muller and Collins 1991 [Euryplacidae]
- Corallicarcinus spinosus, Lorenthey 1929 [Euryplacidae]
- Corystes, Latreille 1802 [Corystidae]
- Corystes cassivelaunus, Pennant 1777 [Corystidae]
- Corystes minisculus, R. Feldmann and Wilson 1998 [Corystidae]
- Corystites, Muller 1984 [Corystidae]
- Corystites latifrons, Lorenthey 1929 [Corystidae]
- Corystites vicetinus, De Angeli et al. 2010 [Corystidae]
- Costacopluma australis, R. Feldmann and Casadio 1995 [Retroplumidae]
- Costacopluma binodosa, Collins and Rasmussen 1992 [Retroplumidae]
- Costacopluma bishopi, Vega and R. Feldmann 1992 [Retroplumidae]
- Costacopluma grayi, R. Feldmann and Portell 2007 [Retroplumidae]
- Costacopluma maroccana, Osso-Morales et al. 2010 [Retroplumidae]
- Costacopluma mexicana, Vega and Perrilliat 1989 [Retroplumidae]
- Costacopluma nordestina, R. Feldmann and Martins-Neto 1995 [Retroplumidae]
- Costacopluma salamanca, R. Feldmann 1997 [Retroplumidae]
- Cowichianassa, C. Schweitzer 2009 [Callianassidae]
- Cowichianassa meckerti, C. Schweitzer 2009 [Callianassidae]
- Crangon, Fabricius 1798 [Crangonidae]
- Crangon miocenicus, Garassino and Teruzzi 1996 [Crangonidae]
- Crangonidae, family, Haworth 1825 [Decapoda]
- Crangonoidea, superfamily, Haworth 1825 [Decapoda]
- Cretachlorodius, Fraaye 1996 [Decapoda]
- Cretachlorodius enciensis, Fraaye 1996 [Decapoda]
- Cretacoranina, Mertin 1941 [Palaeocorystidae]
- Cretacoranina australis, Secretan 1964 [Palaeocorystidae]
- Cretacoranina denisae, Secretan 1964 [Palaeocorystidae]
- Cretacoranina laevis, Schluter 1868 [Palaeocorystidae]
- Cretacoranina ornatus, Wright and Collins 1972 [Palaeocorystidae]
- Cretacoranina paututensis, Collins and Rasmussen 1992 [Palaeocorystidae]
- Cretacoranina punctata, Rathbun 1935 [Palaeocorystidae]
- Cretacoranina schloenbachi, Schluter 1879 [Palaeocorystidae]
- Cretacoranina syriacus, Withers 1928 [Palaeocorystidae]
- Cretagalathea, Garassino et al. 2008 [Galatheidae]
- Cretagalathea exigua, Garassino et al. 2008 [Galatheidae]
- Cretapenaeus, Garassino et al. 2006 [Decapoda]
- Cretapenaeus berberus, Garassino 2006 [Decapoda]
- Cretasergestes, Garassino and Schweigert 2006 [Decapoda]
- Cretasergestes sahelalmaensis, Garassino and Schweigert 2006 [Decapoda]
- Cricoidoscelosidae, family, Taylor et al. 1999 [Decapoda]
- Cricoidoscelosus, Taylor et al. 1999 [unclassified genus]
- Cricoidoscelosus aethus, Taylor et al. 1999 [Cricoidoscelosus]
- Cristafrons praescientis, R. Feldmann et al. 1993 [Palaeocorystidae]
- Cristella, Collins and Rasmussen 1992 [Necrocarcinidae]
- Cristella hastata, Collins and Rasmussen 1992 [Necrocarcinidae]
- Cristipluma mississippiensis, Bishop 1983 [Retroplumidae]
- Cronius, Stimpson 1862 [Portunidae]
- Crosniera, Kensley and Heard 1991 [Thomassiniidae]
- Crosniera schweitzerae, Hyzny and Schlogl 2010 [Thomassiniidae]
- Crossotonotidae, family, Moosa and Serene 1981 [Decapoda]
- Crossotonotus diosdensis, Muller 1984 [Crossotonotidae]
- Cryptochiridae, family, Paulson 1875 [unclassified family]
- Cryptochiroidea, superfamily, Paulson 1875 [Decapoda]
- Cryptocneminae, subfamily, Stimpson 1907 [unclassified subfamily]
- Cryptodromia, Stimpson 1858 [Dromiidae]
- Cryptodromia fallax, Lamarck 1818 [Dromiidae]
- Cryptolutea, Ward 1936 [Pilumnidae]
- Cryptolutea littoralis, Collins 2003 [Pilumnidae]
- Cryptolutea warreni, Karasawa 2008 [Pilumnidae]
- Ctenocheles anderseni, Collins and Jakobsen 2003 [Ctenochelidae]
- Ctenocheles chattiensis, Polkowsky 2004 [Ctenochelidae]
- Ctenocheles cookei, Rathbun 1935 [Ctenochelidae]
- Ctenocheles dentatus, Rathbun 1935 [Ctenochelidae]
- Ctenocheles hokoensis, C. Schweitzer and R. Feldmann 2001 [Ctenochelidae]
- Ctenocheles inaequidens, Pleseneer 1886 [Ctenochelidae]
- Ctenocheles madagascariensis, Secretan 1964 [Ctenochelidae]
- Ctenocheles maorianus, Powell 1949 [Ctenochelidae]
- Ctenocheles ornatus, Beschin 2005 [Ctenochelidae]
- Ctenocheles possagnoensis, Busulini and Beschin 2009 [Ctenochelidae]
- Ctenocheles rupeliensis, Beurlen 1939 [Ctenochelidae]
- Ctenocheles secretanae, C. Schweitzer and R. Feldmann 2002 [Ctenochelidae]
- Ctenocheles sereaensis, Beschin et al. 2009 [Ctenochelidae]
- Ctenocheles sujakui, Imaizumi 1958 [Ctenochelidae]
- Ctenocheles valdellae, Fabiani 1908 [Ctenochelidae]
- Ctenocheles victor, Glaessner 1948 [Ctenochelidae]
- Cyamocarcinus angustifrons, Bittner 1883 [Decapoda]
- Cycleryon elongatus, Munster 1839 [Eryonidae]
- Cycleryon orbiculatus, Munster 1839 [Eryonidae]
- Cycleryon propinquus, Schlotheim 1822 [Eryonidae]
- Cycleryon wulfi, Garassino and Schweigert 2004 [Eryonidae]
- Cyclocancer tuberculatus, Beurlen 1958 [Cancridae]
- Cyclocorystes vulgatus, Quayle and Collins 1981 [Xanthidae]
- Cyclodius, Dana 1851 [Xanthidae]
- Cyclodius granulosus, De Man 1888 [Xanthidae]
- Cyclodius nitidus, Dana 1852 [Xanthidae]
- Cyclodius ungulatus, H. Milne-Edwards 1834 [Xanthidae]
- Cyclodorippinae, subfamily, Ortmann 1892 [Cyclodorippidae]
- Cyclodorippoidea, superfamily, Ortmann 1892 [Decapoda]
- Cycloes granulosa, De Haan 1837 [Calappidae]
- Cyclograpsus, H. Milne-Edwards 1937 [Varunidae]
- Cyclograpsus directus, Karasawa 1989 [Varunidae]
- Cyclograpsus lwangi, Hu and Tao 1999 [Varunidae]
- Cyclograpsus rectangularis, Karasawa 1989 [Varunidae]
- Cycloprosopon complanatiforme, Moericke 1889 [Goniodromitidae]
- Cycloprosopon conspicuum, C. Schweitzer and R. Feldmann 2010 [Goniodromitidae]
- Cycloprosopon devexum, C. Schweitzer and R. Feldmann 2010 [Goniodromitidae]
- Cycloprosopon etalloni, Gemmellaro 1869 [Goniodromitidae]
- Cycloprosopon octonarium, C. Schweitzer and R. Feldmann 2010 [Goniodromitidae]
- Cycloprosopon stenofrons, C. Schweitzer and R. Feldmann 2010 [Goniodromitidae]
- Cycloprosopon typicum, Lorenthey 1929 [Goniodromitidae]
- Cyclothyreus latus, Moericke 1889 [Goniodromitidae]
- Cyclothyreus transitorius, Remes 1895 [Goniodromitidae]
- Cycloxanthops novemdentatus, Lockington 1877 [Xanthidae]
- Cymoinae, subfamily, Alcock 1898 [Xanthidae]
- Cymonomidae, family, Bouvier 1897 [Decapoda]
- Cymonomus, A. Milne-Edwards 1880 [Cymonomidae]
- Cymonomus primitivus, Muller and Collins 1991 [Cymonomidae]
- Cyrtorhina globosa, Beschin et al. 1988 [Raninidae]
- Cyrtorhina oblonga, Beschin et al. 1988 [Raninidae]
- Cyrtorhina ripacurtae, Artal and Castillo 2005 [Raninidae]
- Cyrtorhininae, subfamily, Guinot 1993 [Palaeocorystidae]
- Dacryopilumnidae, family, Serene 1984 [Decapoda]
- Dagnaudus, Guinot and Richer de Forges 1995 [Homolidae]
- Dagnaudus pritchardi, Jenkins 1977 [Homolidae]
- Daira coronata, Beschin 2005 [Decapoda]
- Daira depressa, A. Milne-Edwards 1865 [Decapoda]
- Daira eocaenica, Lorenthey 1898 [Decapoda]
- Daira eocenica, Di Salvo 1933 [Decapoda]
- Daira perlata, Herbst 1790 [Decapoda]
- Daira salebrosa, Beschin 2002 [Decapoda]
- Daira sicula, Di Salvo 1933 [Decapoda]
- Daira speciosa, Reuss 1871 [Decapoda]
- Daira vulgaris, Portell and Collins 2004 [Decapoda]
- Dairidae, family, Ng and Rodriguez 1986 [Decapoda]
- Dairoidea, superfamily, Serene 1965 [Decapoda]
- Daldorfia eocenica, Beschin et al. 2007 [Parthenopidae]
- Daldorfia fabianii, Beschin et al. 2001 [Parthenopidae]
- Daldorfia himaleoraphis, C. Schweitzer 2001 [Parthenopidae]
- Daldorfia nagashimai, Karasawa and Kato 1996 [Parthenopidae]
- Daragrapsus, Muller and Collins 1991 [Decapoda]
- Daragrapsus trispinosus, Muller and Collins 1991 [Decapoda]
- Daranyia fabianii, Di Salvo 1933 [Decapoda]
- Daranyia granulata, Lorenthey 1901 [Decapoda]
- Dardanus arrosor, Herbst 1796 [Paguridae]
- Dardanus curtimanus, Muller and Collins 1991 [Paguridae]
- Dardanus gemmatus, H. Milne-Edwards 1848 [Paguridae]
- Dardanus hungaricus, Lorenthey 1929 [Paguridae]
- Dardanus impressus, De Haan 1849 [Paguridae]
- Dardanus mediterraneus, Lorenthey 1907 [Paguridae]
- Dardanus muelleri, Karasawa and Inoue 1992 [Paguridae]
- Dardanus substriatus, A. Milne-Edwards 1861 [Paguridae]
- Delclosia, Rabada 1993 [Atyidae]
- Delclosia martinelli, Rabada 1993 [Atyidae]
- Delclosia roselli, Via 1971 [Atyidae]
- Demania, Laurie 1906 [Xanthidae]
- Demania caltripes, Alcock 1898 [Xanthidae]
- Demania chayiensis, Hu 1981 [Xanthidae]
- Demania pilipinas, Karasawa 2008 [Xanthidae]
- Demania reynaudii, H. Milne-Edwards 1834 [Xanthidae]
- Demania scaberrima, Walker 1887 [Xanthidae]
- Demania wardi, Garth and Ng 1985 [Xanthidae]
- Dentoxanthinae, subfamily, Stevcic 2005 [unclassified subfamily]
- Derilambrus, Tan and Ng 2007 [Parthenopidae]
- Derilambrus angulifrons, Latreille 1825 [Parthenopidae]
- Desmocarididae, family, Borradaile 1915 [Decapoda]
- Diacanthurus, McLaughlin and Forest 1997 [Paguridae]
- Diacanthurus clifdenensis, Hyden and Forest 1980 [Paguridae]
- Diaulax carteriana, Bell 1863 [Diaulacidae]
- Diaulax feliceps, Wright and Collins 1972 [Diaulacidae]
- Diaulax italica, Beschin et al. 2007 [Diaulacidae]
- Diaulax oweni, Bell 1850 [Diaulacidae]
- Diaulax roddai, Bishop 1983 [Diaulacidae]
- Diaulax yokoii, Collins 1993 [Diaulacidae]
- Dilocarcininae, subfamily, Pretzmann 1978 [Trichodactylidae]
- Diogenes, Dana 1851 [Diogenidae]
- Diogenes edwardsii, De Haan 1849 [Diogenidae]
- Diogenes longimanus, Muller and Collins 1991 [Diogenidae]
- Diogenes matrensis, Muller 1984 [Diogenidae]
- Diogenes pugilator, Roux 1828 [Diogenidae]
- Dioratiopus, Woods 1953 [Longodromitidae]
- Dioratiopus salebrosus, Woods 1953 [Longodromitidae]
- Distefania autissiodorensis, Van Straelen 1936 [Dynomenidae]
- Distefania calva, C. Schweitzer and R. Feldmann 2010 [Dynomenidae]
- Distefania centrosa, Van Straelen 1940 [Dynomenidae]
- Distefania cryptica, Jagt et al. 2007 [Dynomenidae]
- Distefania dacia, C. Schweitzer and R. Feldmann 2010 [Dynomenidae]
- Distefania himeraensis, Checchia-Rispoli 1917 [Dynomenidae]
- Distefania incerta, Bell 1863 [Dynomenidae]
- Distefania oxythyreiformis, Gemmellaro 1869 [Dynomenidae]
- Distefania renevieri, Tribolet 1876 [Dynomenidae]
- Distefania sergipensis, Beurlen 1965 [Dynomenidae]
- Distefania sinososulcata, Wright and Collins 1972 [Dynomenidae]
- Distefania transiens, Wright and Collins 1972 [Dynomenidae]
- Dorippe frankhauseri, Studer 1898 [Dorippidae]
- Dorippe margaretha, Lorenthey 1929 [Dorippidae]
- Dorippe ornatissima, Muller 2006 [Dorippidae]
- Dotillidae, family, Stimpson 1858 [Decapoda]
- Drachiella guinotae, Morris and Collins 1991 [Aethridae]
- Drobna deformis, Munster 1839 [Decapoda]
- Dromia corvini, Bittner 1893 [Dromiidae]
- Dromia fossata, Muller and Collins 1991 [Dromiidae]
- Dromia neogenica, Muller 1978 [Dromiidae]
- Dromia subglobosa, Muller and Collins 1991 [Dromiidae]
- Dromidia, Stimpson 1858 [Dromiidae]
- Dromidia bedetteae, Blow and Manning 1996 [Dromiidae]
- Dromiinae, subfamily, De Haan 1833 [Dromiidae]
- Dromilites alpina, Glaessner 1929 [Sphaerodromiidae]
- Dromilites bucklandi, H. Milne-Edwards 1837 [Sphaerodromiidae]
- Dromilites pastoris, Via 1959 [Sphaerodromiidae]
- Dromilites simplex, Quayle and Collins 1981 [Sphaerodromiidae]
- Dromilites vicensis, Barnolas-Cortinas 1973 [Sphaerodromiidae]
- Dromioidea, superfamily, De Haan 1833 [Decapoda]
- Dromiopsis depressa, Segerberg 1900 [Dromiidae]
- Dromiopsis elegans, Reuss 1858 [Dromiidae]
- Dromiopsis gigas, Forir 1887 [Dromiidae]
- Dromiopsis granulata, Collins and Rasmussen 1992 [Dromiidae]
- Dromiopsis humerosus, Quayle and Collins 1981 [Dromiidae]
- Dromiopsis laevior, Reuss 1859 [Dromiidae]
- Dromiopsis mosae, Collins 1995 [Dromiidae]
- Dromiopsis paucigranosa, Beschin et al. 2007 [Dromiidae]
- Dromiopsis praelaevior, Collins 1995 [Dromiidae]
- Dromiopsis pulchella, Secretan 1964 [Dromiidae]
- Dromiopsis rugosus, Schlotheim 1820 [Dromiidae]
- Dromiopsis ubaghsi, Forir 1889 [Dromiidae]
- Duncanitrix, C. Schweitzer et al. 2010 [Leucosiidae]
- Duncanitrix jamaicensis, Portell and Collins 2004 [Leucosiidae]
- Dusa araneae, Schweigert 2002 [Decapoda]
- Dusa bronni, Oppel 1862 [Decapoda]
- Dusa denticulata, Munster 1839 [Decapoda]
- Dusa longipes, Pinna 1974 [Decapoda]
- Dusa monocera, Munster 1839 [Decapoda]
- Dynomene acutispinis, Rathbun 1945 [Dynomenidae]
- Dynomene emiliae, Muller 1978 [Dynomenidae]
- Dynomene hispida, Guerin-Meneville 1832 [Dynomenidae]
- Dynomene lessinea, Beschin 2001 [Dynomenidae]
- Dynomene praedator, A. Milne-Edwards 1878 [Dynomenidae]
- Dynomene shinobui, Karasawa 1993 [Dynomenidae]
- Dynomene variabilis, Portel and Collins 2004 [Dynomenidae]
- Dynomenopsis, Secretan 1972 [Tumidocarcinidae]
- Dynomenopsis branisai, Secretan 1972 [Tumidocarcinidae]
- Ebalia cranchii, Leach 1817 [Leucosiidae]
- Ebalia cryptocnemoides, Takeda and Miyake 1972 [Leucosiidae]
- Ebalia ferganensis, Ilyin and Alekseev 2005 [Leucosiidae]
- Ebalia fucinii, Ristori 1893 [Leucosiidae]
- Ebalia hungarica, Muller 1974 [Leucosiidae]
- Ebalia jacqueshermani, van Bakel et al. 2003 [Leucosiidae]
- Ebalia kakegawaensis, Karasawa 1993 [Leucosiidae]
- Ebalia lamarmorai, Lorenthey 1909 [Leucosiidae]
- Ebalia longimana, Ortmann 1892 [Leucosiidae]
- Ebalia meulenkampi, Georgiades and Muller 1984 [Leucosiidae]
- Ebalia multiangulata, Muller 1993 [Leucosiidae]
- Ebalia noetlingi, Karasawa 2008 [Leucosiidae]
- Ebalia nux, A. Milne-Edwards 1883 [Leucosiidae]
- Ebalia oersi, Muller 1978 [Leucosiidae]
- Ebalia tuberosa, Pennant 1777 [Leucosiidae]
- Ebalia tumefacta, Montagu 1808 [Leucosiidae]
- Ebalia vahldieki, Forster and Mundlos 1992 [Leucosiidae]
- Ebalia vanstraeleni, Bachmayer 1953 [Leucosiidae]
- Enoploclytia armata, Secretan 1964 [Erymidae]
- Enoploclytia brevimana, McCoy 1849 [Erymidae]
- Enoploclytia collignoni, Secretan 1964 [Erymidae]
- Enoploclytia edwardsi, Sauvage 1891 [Erymidae]
- Enoploclytia eocenica, Garassino et al. 2009 [Erymidae]
- Enoploclytia glaessneri, Van Straelen 1936 [Erymidae]
- Enoploclytia granulicauda, Schluter 1862 [Erymidae]
- Enoploclytia imagei, McCoy 1849 [Erymidae]
- Enoploclytia leachii, Mantell 1822 [Erymidae]
- Enoploclytia paucispina, Schluter 1868 [Erymidae]
- Enoploclytia salviensis, Robineau-Desvoidy 1849 [Erymidae]
- Enoploclytia sculpta, Rathbun 1926 [Erymidae]
- Enoploclytia seitzi, Glaessner 1932 [Erymidae]
- Enoploclytia tenuidigitata, Woods 1957 [Erymidae]
- Enoplolambrus, A. Milne-Edwards 1878 [Parthenopidae]
- Enoplolambrus laciniata, De Haan 1839 [Parthenopidae]
- Enoplolambrus shibatai, Karasawa et al. 2010 [Parthenopidae]
- Enoplometopidae, family, Saint Laurent 1988 [Decapoda]
- Enoplometopoidea, superfamily, Saint Laurent 1988 [Decapoda]
- Enoplonotus armatus, A. Milne-Edwards 1860 [Portunidae]
- Eocalcinus albus, Beschin et al. 2010 [Diogenidae]
- Eocalcinus cavus, Beschin 2002 [Diogenidae]
- Eocalcinus eocenicus, Via 1959 [Diogenidae]
- Eocarcinidae, family, Withers 1932 [Decapoda]
- Eocarcinoidea, superfamily, Withers 1932 [Decapoda]
- Eocarcinus praecursor, Withers 1932 [Eocarcinidae]
- Eocarpilius anomola, Rathbun 1935 [Carpiliidae]
- Eocarpilius antiquus, Glaessner 1928 [Carpiliidae]
- Eocarpilius carolinensis, Blow and Manning 1996 [Carpiliidae]
- Eocharybdis, Beschin 2002 [Portunidae]
- Eocharybdis cristata, Beschin 2002 [Portunidae]
- Eocorystes, Bell 1863 [unclassified genus]
- Eodorippe, Glaessner 1980 [Dorippidae]
- Eodorippe spedeni, Glaessner 1980 [Dorippidae]
- Eodromites aequilatum, Von Meyer 1860 [Goniodromitidae]
- Eodromites dobrogea, R. Feldmann et al. 2006 [Goniodromitidae]
- Eodromites grande, Von Meyer 1857 [Goniodromitidae]
- Eoglypturus, Beschin et al. 2005 [Callianassidae]
- Eoglypturus grolensis, Beschin et al. 2005 [Callianassidae]
- Eohalimede, Blow and Manning 1996 [Pilumnidae]
- Eohalimede granosa, Beschin 2002 [Pilumnidae]
- Eohalimede sandersi, Blow and Manning 1998 [Pilumnidae]
- Eohalimede walleri, Blow and Manning 1996 [Pilumnidae]
- Eohexapus, De Angeli et al. 2010 [Hexapodidae]
- Eohexapus albertii, De Angeli et al. 2010 [Hexapodidae]
- Eoinachoides latispinosa, Carriol et al. 1987 [Eoinachoides]
- Eoinachoides senni, Van Straelen 1933 [Eoinachoides]
- Eomaldivia, Muller and Collins 1991 [Trapeziidae]
- Eomaldivia pannonica, Muller and Collins 1991 [Trapeziidae]
- Eomaldivia trispinosa, Muller and Collins 1991 [Trapeziidae]
- Eomatuta, De Angeli and Marchiori 2009 [Matutidae]
- Eomatuta granosa, De Angeli and Marchiori 2009 [Matutidae]
- Eomunidopsis kinokunica, Karasawa et al. 2008 [Galatheidae]
- Eomunidopsis meerssensis, Collins 1995 [Galatheidae]
- Eomunidopsis neojurensis, Patrulius 1959 [Galatheidae]
- Eomunidopsis orobensis, Ruiz de Gaona 1943 [Galatheidae]
- Eomunidopsis portlandica, Fraaye and Collins 1996 [Galatheidae]
- Eopaguropsis, Van Bakel 2008 [Decapoda]
- Eopaguropsis loercheri, Van Bakel 2008 [Decapoda]
- Eopalicus, Beschin et al. 1996 [Palicidae]
- Eopalicus imbricatus, De Angeli and Beschin 2000 [Palicidae]
- Eopalicus semicarinatus, De Angeli and Beschin 2000 [Palicidae]
- Eopalicus squamosus, Beschin et al. 1996 [Palicidae]
- Eopetrolisthes, De Angeli and Garassino 2002 [Porcellanidae]
- Eopetrolisthes striatissimus, Muller and Collins 1991 [Porcellanidae]
- Eopilumnus, Beschin 2002 [Pilumnidae]
- Eopilumnus checchii, Beschin 2002 [Pilumnidae]
- Eoprosopon klugi, Forster 1986 [Homolodromiidae]
- Eotrachynotocarcinus, Beschin et al. 2007 [Decapoda]
- Eotrachynotocarcinus airaghii, Beschin 2007 [Decapoda]
- Eotylaspis, Van Bakel 2008 [Decapoda]
- Eotylaspis wehnerae, Van Bakel 2008 [Decapoda]
- Eoxanthias, Hu and Tao 1996 [Decapoda]
- Eoxanthias keelonicus, Hu and Tao 1996 [Decapoda]
- Epialtidae, family, MacLeay 1838 [Decapoda]
- Epialtinae, subfamily, MacLeay 1838 [unclassified subfamily]
- Epigodromia, McLay 1993 [Dromiidae]
- Epigodromia areolata, Ihle 1913 [Dromiidae]
- Epilobocerinae, subfamily, Smalley 1964 [Pseudothelphusidae]
- Epixanthus, Heller 1862 [Oziidae]
- Epixanthus frontalis, H. Milne-Edwards 1834 [Oziidae]
- Eriocheir, De Haan 1835 [Varunidae]
- Eriocheir japonica, De Haan 1835 [Varunidae]
- Eriosachila bartholomaeensis, Rathbun 1919 [Aethridae]
- Eriosachila cuvillieri, Van Straelen 1929 [Aethridae]
- Eriosachila orri, C. Schweitzer and R. Feldmann 2000 [Aethridae]
- Eriosachila petiti, Blow and Manning 1996 [Aethridae]
- Eriosachila rathbunae, Maury 1930 [Aethridae]
- Eriosachila rossi, C. Schweitzer and R. Feldmann 2000 [Aethridae]
- Eriosachila terryi, Rathbun 1937 [Aethridae]
- Eriphia cocchii, Ristori 1886 [Eriphiidae]
- Eriphia verrucosa, Forskal 1775 [Eriphiidae]
- Erroranilia, Boyko 2004 [Palaeocorystidae]
- Erroranilia taipeiensis, Hu and Tao 1996 [Palaeocorystidae]
- Eryma affinis, De Ferry 1865 [Erymidae]
- Eryma amalthei, Quenstedt 1851 [Erymidae]
- Eryma americanum, Rathbun 1923 [Erymidae]
- Eryma anisodactylum, Krause 1891 [Erymidae]
- Eryma australe, Secretan 1964 [Erymidae]
- Eryma babeaui, Etallon 1861 [Erymidae]
- Eryma bedeltum, Quenstedt 1857 [Erymidae]
- Eryma boloniensis, Sauvage 1891 [Erymidae]
- Eryma bordenensis, Copeland 1960 [Erymidae]
- Eryma burgundiacum, Cronier and Courville 2004 [Erymidae]
- Eryma caraboeufi, Moriere 1888 [Erymidae]
- Eryma compressum, Eudes-Deslongchamps 1842 [Erymidae]
- Eryma corallinum, Van Straelen 1924 [Erymidae]
- Eryma crassimanum, Krause 1891 [Erymidae]
- Eryma cretaceum, Roger 1946 [Erymidae]
- Eryma cumonti, Van Straelen 1921 [Erymidae]
- Eryma curvum, Beurlen 1928 [Erymidae]
- Eryma delphinensis, Moret 1946 [Erymidae]
- Eryma deslongchampsi, Van Straelen 1924 [Erymidae]
- Eryma dutertrei, Sauvage 1891 [Erymidae]
- Eryma flectum, Rathbun 1926 [Erymidae]
- Eryma foersteri, Feldmann 1979 [Erymidae]
- Eryma fossatum, Krause 1891 [Erymidae]
- Eryma georgei, Carter 1886 [Erymidae]
- Eryma gracilimanum, Lahusen 1894 [Erymidae]
- Eryma granuliferum, Secretan 1964 [Erymidae]
- Eryma guisei, Wright 1881 [Erymidae]
- Eryma hoerstgenensis, Bachmayer and Malzahn 1983 [Erymidae]
- Eryma karitzkyi, Lahusen 1894 [Erymidae]
- Eryma lafayi, Lissajous 1923 [Erymidae]
- Eryma lerasi, Etallon 1861 [Erymidae]
- Eryma leucodermum, Pusch 1838 [Erymidae]
- Eryma loryi, Van Straelen 1923 [Erymidae]
- Eryma madagascariensis, Secretan 1964 [Erymidae]
- Eryma major, Oppel 1861 [Erymidae]
- Eryma mandelslohi, Von Meyer 1840 [Erymidae]
- Eryma meyeri, Garassino 1996 [Erymidae]
- Eryma modesiforme, Schlotheim 1822 [Erymidae]
- Eryma mosquensis, Lahusen 1894 [Erymidae]
- Eryma nicklesi, Mechin 1901 [Erymidae]
- Eryma nippon, Karasawa et al. 2008 [Erymidae]
- Eryma ornatum, Quenstedt 1857 [Erymidae]
- Eryma orthodactylum, Beurlen 1928 [Erymidae]
- Eryma pulchellum, Carter 1886 [Erymidae]
- Eryma punctatum, Oppel 1861 [Erymidae]
- Eryma quadriverrucatum, Trautschold 1866 [Erymidae]
- Eryma quenstedti, Beurlen 1928 [Erymidae]
- Eryma radiatum, Oppel 1861 [Erymidae]
- Eryma rinellincolum, De Gregorio 1884 [Erymidae]
- Eryma romani, Oppel 1861 [Erymidae]
- Eryma squalidum, Etallon 1861 [Erymidae]
- Eryma strambergensis, Bachmayer 1959 [Erymidae]
- Eryma stricklandi, Phillips 1871 [Erymidae]
- Eryma sulcatum, Harbort 1905 [Erymidae]
- Eryma tithonium, Van Straelen 1936 [Erymidae]
- Eryma tuberculatum, Van Straelen 1936 [Erymidae]
- Eryma ventrosum, Von Meyer 1835 [Erymidae]
- Eryma walkerae, Feldmann and Haggart 2007 [Erymidae]
- Eryon arctiformis, Schlotheim 1820 [Eryonidae]
- Eryon ellipticus, Van Straelen 1923 [Eryonidae]
- Eryon neocomiensis, Woodward 1881 [Eryonidae]
- Eryon perroni, Etallon 1859 [Eryonidae]
- Eryon sublevis, Carter 1886 [Eryonidae]
- Eryonidae, family, De Haan 1841 [Decapoda]
- Eryonoidea, superfamily, De Haan 1841 [Decapoda]
- Etallonia hoellorum, Polz 1999 [Axiidae]
- Etallonia longimana, Munster 1839 [Axiidae]
- Etallonia raineralberti, Schweigert 2010 [Axiidae]
- Etallonia subtilis, Krause 1908 [Axiidae]
- Etallonia suprajurensis, Quenstedt 1852 [Axiidae]
- Ethusa, Roux 1830 [Ethusidae]
- Ethusa berica, De Angeli and Beschin 2008 [Ethusidae]
- Ethusa chibai, Karasawa 1993 [Ethusidae]
- Ethusa evae, Muller and Collins 1991 [Ethusidae]
- Ethusa mascarone, Herbst 1785 [Ethusidae]
- Ethusa octospinosa, Muller 2006 [Ethusidae]
- Ethusa popognensis, De Angeli 2009 [Ethusidae]
- Ethusidae, family, Guinot 1977 [Decapoda]
- Etisinae, subfamily, Ortmann 1893 [Xanthidae]
- Etisus ardinoi, Beschin et al. 2007 [Xanthidae]
- Etisus dentatus, Herbst 1785 [Xanthidae]
- Etisus javanicus, Van Straelen 1938 [Xanthidae]
- Etisus laevimanus, Randall 1839 [Xanthidae]
- Etisus pleistocenicus, Hu and Tao 2000 [Xanthidae]
- Etisus splendidus, Rathbun 1906 [Xanthidae]
- Etyidae, family, D. Guinot and M. Tavares 2001 [Etyoidea]
- Etyoidea, superfamily, Guinot and Tavares 2001 [unclassified superfamily]
- Etyus martini, Mantell 1844 [Bryocryptellidae]
- Etyxanthosia, Fraaije et al. 2008 [Etyidae]
- Etyxanthosia fossa, Wright and Collins 1972 [Etyidae]
- Etyxanthosia pawpawensis, C. Schweitzer et al. 1999 [Etyidae]
- Etyxanthosia reidi, C. Schweitzer et al. 1999 [Etyidae]
- Eucalliax, Manning and Felder 1991 [Callianassidae]
- Eucalliax miyazakiensis, Karasawa 1993 [Callianassidae]
- Eucalliax vicetina, Beschin et al. 2002 [Callianassidae]
- Eucalliax yatsueoensis, Karasawa 1993 [Callianassidae]
- Eucalliax yoshiroi, Karasawa 1992 [Callianassidae]
- Euclosia, Galil 2003 [Leucosiidae]
- Euclosia obtusifrons, De Haan 1841 [Leucosiidae]
- Euclosia unidentata, De Haan 1841 [Leucosiidae]
- Eucorystes broderipi, Mantell 1844 [Palaeocorystidae]
- Eucorystes eichhorni, Bishop 1983 [Palaeocorystidae]
- Eucorystes harveyi, Woodward 1896 [Palaeocorystidae]
- Eucorystes intermedius, Nagao 1931 [Palaeocorystidae]
- Eucorystes mangyshlakensis, Ilyin and Pistshikova 2005 [Palaeocorystidae]
- Eucorystes oxtedensis, Wright and Collins 1972 [Palaeocorystidae]
- Eucrate, De Haan 1835 [Euryplacidae]
- Eucrate crenata, De Haan 1835 [Euryplacidae]
- Eucrate puliensis, Hu and Tao 1996 [Euryplacidae]
- Eucratopsinae, subfamily, Stimpson 1871 [Panopeidae]
- Eugonatonotidae, family, Chace 1937 [Decapoda]
- Eumedoninae, subfamily, Dana 1853 [Pilumnidae]
- Eumorphactaea latifrons, A. Milne-Edwards 1880 [Pilumnidae]
- Eumorphactaea scissifrons, Bittner 1875 [Pilumnidae]
- Eumorphocorystes muelleri, Van Binkhorst 1857 [Palaeocorystidae]
- Eumorphocorystes sculptus, Van Binkhost 1857 [Palaeocorystidae]
- Eumorphocorystes toehoepae, Van Straelen 1924 [Palaeocorystidae]
- Eumorphocorystes vahldieki, Forster and Mundlos 1982 [Palaeocorystidae]
- Eumunida, Smith 1883 [Chirostylidae]
- Eumunida pentacantha, Muller and Collins 1991 [Chirostylidae]
- Euphylax callinecias, Rathbun 1918 [Portunidae]
- Euphylax fortispinosus, Collins 2001 [Portunidae]
- Euphylax maculatus, Collins 2005 [Portunidae]
- Euphylax septendentatus, Beurlen 1958 [Portunidae]
- Euprognatha ricei, Blow 2003 [Inachoididae]
- Eurohexapus, De Angeli et al. 2010 [Hexapodidae]
- Eurohexapus lobatus, De Angeli et al. 2010 [Hexapodidae]
- Eurolambrus, De Angeli and Beschin 2010 [Parthenopidae]
- Eurolambrus mainensis, De Angeli and Beschin 2010 [Parthenopidae]
- Euronectes, Karasawa et al. 2008 [Portunidae]
- Euronectes grumiensis, Beschin et al. 2001 [Portunidae]
- Euronectes vocans, Muller 1993 [Portunidae]
- Eurycarpus nanodactylus, Schluter 1868 [Decapoda]
- Eurynolambrinae, subfamily, Stevcic 2005 [Majidae]
- Euryozius, Miers 1886 [Pseudoziidae]
- Euryozius angustus, Karasawa 1993 [Pseudoziidae]
- Euryozius bidentatus, Karasawa 1993 [Pseudoziidae]
- Eurypanopeus, A. Milne-Edwards 1880 [Panopeidae]
- Eurypanopeus depressus, Smith 1869 [Panopeidae]
- Eurytium limosum, Say 1818 [Panopeidae]
- Euxanthinae, subfamily, Alcock 1898 [Xanthidae]
- Euxanthus, Dana 1851 [Xanthidae]
- Euxanthus multipunctulatus, Hu and Tao 1996 [Xanthidae]
- Falconoplax bicarinella, Collins and Morris 1976 [Chasmocarcinidae]
- Falconoplax kugleri, Van Straelen 1933 [Chasmocarcinidae]
- Falsiportunites, Collins and Jakobsen 2003 [Macropipidae]
- Falsiportunites longispinosus, Collins and Jakobssen 2003 [Macropipidae]
- Faxegalathea, Jakobsen and Collins 1997 [Galatheidae]
- Faxegalathea platyspinosa, Jakobsen and Collins 2007 [Galatheidae]
- Feldmannia, D. Guinot and M. Tavares 2001 [Feldmanniidae]
- Feldmannia jacksoni, Wright and Collins 1972 [Feldmanniidae]
- Ferricorda, C. Schweitzer and R. Feldmann 2010 [Sphaerodromiidae]
- Ferricorda kimberleyae, Bishop 1987 [Sphaerodromiidae]
- Forestia, Guinot 1976 [Xanthidae]
- Forestia tagauua, Hu and Tao 1996 [Xanthidae]
- Fredericia barsoei, Collins and Jakobsen 2003 [Zanthopsidae]
- Gaeticinae, subfamily, Davie and Ng 2007 [Varunidae]
- Gaillardiellus, Guinot 1976 [Xanthidae]
- Gaillardiellus orientalis, Odhner 1925 [Xanthidae]
- Galathea affinis, Ristori 1886 [Galatheidae]
- Galathea antiqua, Risso 1815 [Galatheidae]
- Galathea berica, De Angeli and Garassino 2002 [Galatheidae]
- Galathea dispersa, Bate 1859 [Galatheidae]
- Galathea keijii, Karasawa 1993 [Galatheidae]
- Galathea lupiae, Robineau-Desvoidy 1849 [Galatheidae]
- Galathea sahariana, Garassino et al. 2008 [Galatheidae]
- Galathea spitzbergica, Gripp 1927 [Galatheidae]
- Galathea squamifera, Leach 1815 [Galatheidae]
- Galathea strigifera, Fischer-Benzon 1866 [Galatheidae]
- Galathea valmaranensis, De Angeli and Garassino 2002 [Galatheidae]
- Galathea weinfurteri, Bachmayer 1950 [Galatheidae]
- Galene bispinosa, Herbst 1804 [Galenidae]
- Galene granulifera, Lin 1947 [Galenidae]
- Galene obscura, A. Milne-Edwards 1865 [Galenidae]
- Galene stipata, Morris and Collins 1991 [Galenidae]
- Galenidae, family, Alcock 1898 [Decapoda]
- Galeninae, subfamily, Alcock 1898 [Galenidae]
- Galenopsis crassifrons, A. Milne-Edwards 1865 [Pilumnidae]
- Galenopsis depressa, A. Milne-Edwards 1872 [Pilumnidae]
- Galenopsis gervilliana, A. Milne-Edwards 1865 [Pilumnidae]
- Galenopsis murchisoni, A. Milne-Edwards 1865 [Pilumnidae]
- Galenopsis pustulosa, A. Milne-Edwards 1865 [Pilumnidae]
- Galenopsis ristorii, Checchia-Rispoli 1907 [Pilumnidae]
- Galenopsis schopeni, Checchia-Rispoli 1905 [Pilumnidae]
- Galenopsis similis, Bittner 1875 [Pilumnidae]
- Galenopsis typica, A. Milne-Edwards 1865 [Pilumnidae]
- Galenopsis wulfi, Forster and Mundlos 1982 [Pilumnidae]
- Galicia, Garassino and Krobicki 2002 [Decapoda]
- Galicia marianae, Garassino and Krobicki 2002 [Decapoda]
- Galicia veltheimi, Munster 1839 [Decapoda]
- Galicia westphali, Schweigert et al. 2000 [Decapoda]
- Gampsurus dubius, Von der Marck 1863 [Decapoda]
- Garthiope, Guinot 1990 [Xanthidae]
- Garthiope spinipes, A. Milne-Edwards 1880 [Xanthidae]
- Gastrodoridae, family, Van Bakel et al. 2008 [Decapoda]
- Gastrodoroidea, superfamily, Van Bakel et al. 2008 [Decapoda]
- Gastrodorus cretahispanicus, Klompmaker 2010 [Homolidae]
- Gastrosacus carteri, Van Straelen 1924 [Galatheidae]
- Gastrosacus eminens, Blaschke 1911 [Galatheidae]
- Gastrosacus eutecta, Moericke 1889 [Galatheidae]
- Gastrosacus meyeri, Moericke 1889 [Galatheidae]
- Gastrosacus robineaui, Tribolet 1874 [Galatheidae]
- Gastrosacus royoi, Van Straelen 1927 [Galatheidae]
- Gastrosacus straeleni, Ruiz de Gaona 1943 [Galatheidae]
- Gastrosacus tuberosa, Remes 1895 [Galatheidae]
- Gastrosacus tuberosiformis, Lorenthey 1929 [Galatheidae]
- Gastrosacus wetzleri, Von Meyer 1851 [Galatheidae]
- Gastrosacus zitteli, Moericke 1889 [Galatheidae]
- Gebiidea, infraorder, Saint Laurent 1979 [Decapoda]
- Gecarcinidae, family, MacLeay 1838 [Decapoda]
- Gecarcinucidae, family, Rathbun 1904 [Decapoda]
- Gecarcinucoidea, superfamily, Rathbun 1904 [Decapoda]
- Gecchelicarcinus, Beschin et al. 2007 [Pilumnidae]
- Gecchelicarcinus lorigae, Beschin et al. 2007 [Pilumnidae]
- Gemmacarcinus, Muller and Collins 1991 [Leucosiidae]
- Gemmacarcinus fossatus, Muller and Collins 1991 [Leucosiidae]
- Gemmacarcinus planus, Muller 1993 [Leucosiidae]
- Gemmellarocarcinus loerenthey, Checchia-Rispoli 1905 [Decapoda]
- Geothelphusa, Stimpson 1858 [Potamidae]
- Geothelphusa dehaani, White 1847 [Potamidae]
- Geothelphusa tenuimanus, Miyake and Minei 1965 [Potamidae]
- Gillcarcinus amphora, Collins and Morris 1978 [Chasmocarcinidae]
- Glabropilumnus fossatus, Muller 1996 [Pilumnidae]
- Glabropilumnus granulatus, De Angeli et al. 2010 [Pilumnidae]
- Glabropilumnus kamiyai, Karasawa 1991 [Pilumnidae]
- Glabropilumnus laevis, Dana 1852 [Pilumnidae]
- Glabropilumnus soghensis, De Angeli and Beschin 2008 [Pilumnidae]
- Glaessnerella angusta, Wright and Collins 1972 [Longodromitidae]
- Glaessnerella balli, Wright and Collins 1972 [Longodromitidae]
- Glaessnerella decipiens, Wright and Collins 1972 [Longodromitidae]
- Glaessnerella depressa, Carter 1898 [Longodromitidae]
- Glaessnerella kennedyi, Wright and Collins 1972 [Longodromitidae]
- Glaessnerella latteri, Wright and Collins 1972 [Longodromitidae]
- Glaessnerella nodulosa, Wright and Collins 1972 [Longodromitidae]
- Glaessnerella primitivus, Fraaye and Collins 1996 [Longodromitidae]
- Glaessnerella spinosa, Van Straelen 1936 [Longodromitidae]
- Glaessnericaris, Garassino and Teruzzi 1993 [Platychelidae]
- Glaessnericaris dubia, Pinna 1974 [Platychelidae]
- Glaessnericaris macrochela, Garassino and Teruzzi 1993 [Platychelidae]
- Glaessneropsis bucegiana, Patrulius 1959 [Glaessneropsidae]
- Glebocarcinus, Nations 1975 [Cancridae]
- Glebocarcinus amphioetus, Rathbun 1898 [Cancridae]
- Glebocarcinus helveticus, Fraaije et al. 2010 [Cancridae]
- Globihexapus, C. Schweitzer and R. Feldmann 2001 [Varunidae]
- Globihexapus kosekii, Kato 2005 [Varunidae]
- Globihexapus paxillus, C. Schweitzer and R. Feldmann 2001 [Varunidae]
- Glyphea alexandri, Taylor 1979 [Glypheidae]
- Glyphea ambigua, Von Fritsch 1870 [Glypheidae]
- Glyphea arborinsularis, Etheridge 1917 [Glypheidae]
- Glyphea australensis, Feldmann et al. 1993 [Glypheidae]
- Glyphea bathonica, De Ferry 1865 [Glypheidae]
- Glyphea bicarinata, Van Straelen 1924 [Glypheidae]
- Glyphea bohemica, Fritsch and Kafka 1887 [Glypheidae]
- Glyphea calloviensis, H. Woods 1927 [Glypheidae]
- Glyphea carinata, Tribolet 1874 [Glypheidae]
- Glyphea christeyi, Feldmann and Maxwell 1999 [Glypheidae]
- Glyphea couloni, Tribolet 1874 [Glypheidae]
- Glyphea crassa, Oppel 1861 [Glypheidae]
- Glyphea cretacea, McCoy 1854 [Glypheidae]
- Glyphea damesi, Garassino 2001 [Glypheidae]
- Glyphea eureka, Damborenea and Mancenido 1987 [Glypheidae]
- Glyphea ferruginea, Blake and Judleston 1877 [Glypheidae]
- Glyphea foresti, Feldmann and Saint Laurent 2002 [Glypheidae]
- Glyphea garasbaaensis, Garassino et al. 2008 [Glypheidae]
- Glyphea georgianus, Taylor 1979 [Glypheidae]
- Glyphea gussmanni, Schutze 1907 [Glypheidae]
- Glyphea hennigi, Beurlen 1933 [Glypheidae]
- Glyphea jurensis, Oppel 1861 [Glypheidae]
- Glyphea liasina, Von Meyer 1840 [Glypheidae]
- Glyphea lyrica, Blake 1876 [Glypheidae]
- Glyphea magnevillii, Eudes-Deslongchamps 1835 [Glypheidae]
- Glyphea mazetieri, Hee 1924 [Glypheidae]
- Glyphea meyeri, Roemer 1836 [Glypheidae]
- Glyphea micheleae, Schweitzer and Feldmann 2001 [Glypheidae]
- Glyphea munsteri, Voltz 1835 [Glypheidae]
- Glyphea neocomiensis, Robineau-Desvoidy 1849 [Glypheidae]
- Glyphea oculata, J. Woods 1957 [Glypheidae]
- Glyphea prestwichi, H. Woods 1929 [Glypheidae]
- Glyphea pseudoscylarus, Schlotheim 1822 [Glypheidae]
- Glyphea regleyana, Desmarest 1822 [Glypheidae]
- Glyphea reticulata, Feldmann and Gazdzicki 1997 [Glypheidae]
- Glyphea riazi, Van Straelen 1924 [Glypheidae]
- Glyphea rigoi, Garassino 2000 [Glypheidae]
- Glyphea rosenkrantzi, Van Straelen 1929 [Glypheidae]
- Glyphea serratosai, Dupuy-Revilla 1956 [Glypheidae]
- Glyphea solitaria, Oppel 1861 [Glypheidae]
- Glyphea spinulosa, Van Straelen 1924 [Glypheidae]
- Glyphea stilwelli, Feldmann 1993 [Glypheidae]
- Glyphea tantalus, Wohrmann 1892 [Glypheidae]
- Glyphea tonelloi, Garassino 1997 [Glypheidae]
- Glyphea tricarinata, Garassino 1996 [Glypheidae]
- Glyphea vectensis, H. Woods 1927 [Glypheidae]
- Glyphea viohli, Polz 2000 [Glypheidae]
- Glyphea willetti, Woodward 1878 [Glypheidae]
- Glyphea yoshiakii, Kato and Karasawa 2006 [Glypheidae]
- Glyphithyreus ellipticus, Bittner 1875 [Panopeidae]
- Glyphithyreus formosus, Reuss 1859 [Panopeidae]
- Glyphithyreus sulcatus, Berulen 1939 [Panopeidae]
- Glyphithyreus wetherelli, Bell 1858 [Panopeidae]
- Glyphocrangonidae, family, Smith 1884 [Decapoda]
- Glyptodynomene alsasuensis, Van Straelen 1944 [Decapoda]
- Glyptodynomene inornata, Collins 1995 [Decapoda]
- Glyptograpsidae, family, Schubart et al. 2002 [Decapoda]
- Glyptoxanthus, A. Milne-Edwards 1879 [Xanthidae]
- Glyptoxanthus primitivus, Muller 1993 [Xanthidae]
- Gnathophyllidae, family, Dana 1852 [Decapoda]
- Gollincarcinus, Beschin and De Angeli 2004 [Litocheiridae]
- Gollincarcinus levis, Beschin and De Angeli 2004 [Litocheiridae]
- Gomezinus, Collins et al. 2003 [Corystidae]
- Gomezinus tuberculatus, Collins et al. 2003 [Corystidae]
- Goniochele angulata, Bell 1858 [Goniochelidae]
- Goniochele madseni, Collins and Jakobsen 2003 [Goniochelidae]
- Goniochirus antoinei, Van Straelen 1924 [Paguridae]
- Goniochirus babeaui, Etallon 1861 [Paguridae]
- Goniochirus cristatus, Carter 1861 [Paguridae]
- Goniochirus jaccardi, Etallon 1861 [Paguridae]
- Goniochirus laevis, Van Straelen 1924 [Paguridae]
- Goniochirus obliquus, Van Straelen 1924 [Paguridae]
- Goniochirus platycheles, McCoy 1849 [Paguridae]
- Goniocypoda collinsi, Crane and Quayle 1986 [Hexapodidae]
- Goniocypoda elmorensis, Crane and Quayle 1986 [Hexapodidae]
- Goniocypoda quaylei, Crane 1981 [Hexapodidae]
- Goniocypoda rajasthanica, Glaessner and Rao 1960 [Hexapodidae]
- Goniocypoda sindensis, Glaessner 1933 [Hexapodidae]
- Goniocypoda sulcata, Carter 1898 [Hexapodidae]
- Goniocypoda tessieri, Remy and Tessier 1954 [Hexapodidae]
- Goniocypoda transsilvanica, Bittner 1893 [Hexapodidae]
- Goniocypoda verheyeni, Fraaije et al. 2007 [Hexapodidae]
- Goniodromites complanatus, Reuss 1858 [Goniodromitidae]
- Goniodromites dacica, Von Mucke 1915 [Goniodromitidae]
- Goniodromites hirotai, Karasawa and Kato 2007 [Goniodromitidae]
- Goniodromites narinosus, Frantescu 2010 [Goniodromitidae]
- Goniodromites sakawense, Karasawa and Kato 2007 [Goniodromitidae]
- Goniodromites transsylvanicus, Lorenthey 1929 [Goniodromitidae]
- Gonoplax arenicola, Glaessner 1960 [Goneplacidae]
- Gonoplax carnuntinus, Bachmayer 1953 [Goneplacidae]
- Gonoplax formosa, Ristori 1886 [Goneplacidae]
- Gonoplax rhomboides, Linnaeus 1758 [Goneplacidae]
- Gonoplax saccoi, Crema 1895 [Goneplacidae]
- Gourretia, Saint Laurent 1973 [Gourretiidae]
- Gourretiidae, family, Sakai 1999 [Decapoda]
- Graptocarcinus bellonii, Collins and Dieni 1995 [Dynomenidae]
- Graptocarcinus maastrichtensis, Fraaye 1996 [Dynomenidae]
- Graptocarcinus muiri, Stenzel 1944 [Dynomenidae]
- Graptocarcinus texanus, Roemer 1887 [Dynomenidae]
- Guinotosia, Beschin et al. 2007 [Etyidae]
- Guinotosia tertiaria, Beschin et al. 2007 [Etyidae]
- Gwana, C. Schweitzer et al. 2010 [Decapoda]
- Gwana minuta, Hu and Tao 1996 [Decapoda]
- Hakelocaris, Garassino 1994 [Decapoda]
- Hakelocaris vavassorii, Garassino 1994 [Decapoda]
- Halimede, De Haan 1833 [Galenidae]
- Halimede fragifer, De Haan 1835 [Galenidae]
- Halimede octhodes, Herbst 1793 [Galenidae]
- Halimedinae, subfamily, Alcock 1898 [Galenidae]
- Harenacorystes, Van Bakel 2009 [Corystidae]
- Harenacorystes johnjansseni, Van Bakel 2009 [Corystidae]
- Harpactocarcinus almerae, Via 1941 [Zanthopsidae]
- Harpactocarcinus istriensis, Bachmayer and Nosan 1959 [Zanthopsidae]
- Harpactocarcinus jacquoti, A. Milne-Edwards 1865 [Zanthopsidae]
- Harpactocarcinus macrodactylus, H. Milne-Edwards 1850 [Zanthopsidae]
- Harpactocarcinus multidentatus, Stubblefield 1946 [Zanthopsidae]
- Harpactocarcinus ovalis, A. Milne-Edwards 1862 [Zanthopsidae]
- Harpactocarcinus punctulatus, A. Milne-Edwards 1862 [Zanthopsidae]
- Harpactocarcinus rotundatus, A. Milne-Edwards 1862 [Zanthopsidae]
- Harpactocarcinus wilkeningi, Bachmayer and Mundlos 1968 [Zanthopsidae]
- Harpactoxanthopsis bittneri, Lorenthey 1898 [Zanthopsidae]
- Harpactoxanthopsis lutugini, Likharev 1917 [Zanthopsidae]
- Harpactoxanthopsis quadrilobatus, Desmarest 1822 [Zanthopsidae]
- Harpactoxanthopsis souverbei, A. Milne-Edwards 1862 [Zanthopsidae]
- Harpactoxanthopsis villaltae, Via 1959 [Zanthopsidae]
- Harthofia, Polz 2007 [Alvinocarididae]
- Harthofia bergeri, Polz 2007 [Alvinocarididae]
- Harthofia blumenbergi, Polz 2007 [Alvinocarididae]
- Hasaracancer, Jux 1971 [Coleiidae]
- Hasaracancer cristatus, Jux 1971 [Coleiidae]
- Haydnella maladensis, Beschin et al. 2007 [Xanthidae]
- Haydnella oligocenica, De Angeli and Beschin 2008 [Xanthidae]
- Haydnella pulchellus, A. Milne-Edwards 1864 [Xanthidae]
- Haydnella steiningeri, Muller 1984 [Xanthidae]
- Hebertides, Guinot et al. 2007 [Corystidae]
- Hebertides jurassica, Guinot et al. 2007 [Corystidae]
- Heeia, Wright and Collins 1972 [Priscinachidae]
- Heeia villersensis, Hee 1924 [Priscinachidae]
- Hefriga proboscideawulfi, Schweigert and Garassino 2004 [Decapoda]
- Hefriga serrata, Munster 1839 [Decapoda]
- Heikeopsis, Ng et al. 2008 [Dorippidae]
- Heikeopsis tuberculata, Morris and Collins 1991 [Dorippidae]
- Hellerocaris falloti, Van Straelen 1923 [Coleiidae]
- Heloeciidae, family, H. Milne-Edwards 1852 [Decapoda]
- Hemigrapsus, Dana 1851 [Varunidae]
- Hemigrapsus nudus, Dana 1851 [Varunidae]
- Hemigrapsus oregonensis, Dana 1851 [Varunidae]
- Hemioon circumviator, Wright and Collins 1972 [Palaeocorystidae]
- Hemioon cunningtoni, Bell 1863 [Palaeocorystidae]
- Hemioon eysunesensis, Collins and Rasmussen 1992 [Palaeocorystidae]
- Hemioon novozelandicum, Glaessenr 1980 [Palaeocorystidae]
- Hemioon yanini, Ilyin and Alekseev 1998 [Palaeocorystidae]
- Hemsut, R. Feldmann et al. 2001 [Matutidae]
- Hemsut schweinfurthi, Noetling 1885 [Matutidae]
- Hepatella amazonica, Beurlen 1958 [Aethridae]
- Hepatinulus lovisatoi, Lorenthey 1909 [Leucosiidae]
- Hepatinulus seguenzai, Ristori 1886 [Leucosiidae]
- Hepatiscus distefanoi, Checchia-Rispoli 1905 [Aethridae]
- Hepatiscus laevis, Lorenthey 1929 [Aethridae]
- Hepatiscus minimus, Beschin 1994 [Aethridae]
- Hepatiscus neumayri, Bittner 1875 [Aethridae]
- Hepatiscus poverelli, Via 1959 [Aethridae]
- Hepatiscus pulchellus, Bittner 1875 [Aethridae]
- Hepatiscus schweinfurthi, Noetling 1885 [Aethridae]
- Hepatiscus sheranii, Collins and Morris 1978 [Aethridae]
- Hepatiscus subpulchellus, Bohm 1922 [Aethridae]
- Hepatus bottomsi, Blow 2003 [Hepatidae]
- Hepatus chiliensis, H. Milne-Edwards 1837 [Hepatidae]
- Hepatus guraboensis, Collins 2009 [Hepatidae]
- Hepatus lineatus, Rathbun 1898 [Hepatidae]
- Hepatus nodosus, Collins and Morris 1976 [Hepatidae]
- Hepatus praecox, Collins et al. 1996 [Hepatidae]
- Herbstia exserta, Collins and Morris 1976 [Epialtidae]
- Heteractaea lunata, A. Milne-Edwards and Lucas 1843 [Xanthidae]
- Heteronucia, Alcock 1896 [Leucosiidae]
- Heteronucia perlata, Sakai 1963 [Leucosiidae]
- Heteropanope, Stimpson 1859 [Pilumnidae]
- Heteropanope wylliei, Glaessner 1933 [Pilumnidae]
- Heteroziinae, subfamily, Stevcic 2005 [unclassified subfamily]
- Heus, Bishop and Williams 2000 [Palaeocorystidae]
- Heus foersteri, Bishop and Williams 2000 [Palaeocorystidae]
- Hexapanopeus, Rathbun 1898 [Panopeidae]
- Hexapanopeus caribbaeus, Stimpson 1871 [Panopeidae]
- Hexapus anfractus, Rathbun 1909 [Hexapodidae]
- Hexapus decapoda, Morris and Collins 1991 [Hexapodidae]
- Hexapus granuliformis, Karasawa and Kato 2008 [Hexapodidae]
- Hexapus nakajimai, Imaizumi 1959 [Hexapodidae]
- Hexapus pinfoldi, Collins and Morris 1978 [Hexapodidae]
- Hillius youngi, Bishop 1983 [Cyclodorippidae]
- Hippidae, family, Latreille 1825 [Decapoda]
- Hippoidea, superfamily, Latreille 1825 [Decapoda]
- Hippolytidae, family, Bate 1888 [Decapoda]
- Holcocarcinus sulcatus, Withers 1924 [Carpiliidae]
- Holthuisea, Guinot et al. 2010 [Hexapodidae]
- Holthuisea cesarii, Beschin 1994 [Hexapodidae]
- Homarus americanus, H. Milne Edwards 1837 [Nephropidae]
- Homarus hakelensis, Fraas 1878 [Nephropidae]
- Homarus lehmanni, Haas 1889 [Nephropidae]
- Homarus mickelsoni, Bishop 1985 [Nephropidae]
- Homarus morrisi, Quayle 1987 [Nephropidae]
- Homarus neptunianus, Polkowsky 2004 [Nephropidae]
- Homarus vulgaris, H. Milne Edwards 1837 [Nephropidae]
- Homelys minor, Von Meyer 1862 [Decapoda]
- Homola vancouverensis, C. Schweitzer 2001 [Homolidae]
- Homola vanzoi, Beschin et al. 2009 [Homolidae]
- Homoliformis, Collins et al. 2005 [Mathildellidae]
- Homoliformis vagus, Collins et al. 2005 [Mathildellidae]
- Homolodromiidae, family, Alcock 1900 [Decapoda]
- Homolopsis chilensis, Forster and Stinnesbeck 1987 [Homolidae]
- Homolopsis depressa, Carter 1898 [Homolidae]
- Homolopsis gibbosa, Schluter 1879 [Homolidae]
- Homolopsis glabra, Wright and Collins 1972 [Homolidae]
- Homolopsis hachiyai, Takeda and Fujiyama 1983 [Homolidae]
- Homolopsis spinosa, Van Straelen 1936 [Homolidae]
- Homolopsis spinulosa, Glaessner 1980 [Homolidae]
- Homolopsis tuberculata, Van Straelen 1936 [Homolidae]
- Homolopsis williamsi, Bishop 1922 [Homolidae]
- Homolus, Eudes-Deslongschamps 1835 [Homolodromiidae]
- Hoplitocarcinus, Beurlen 1928 [Homolidae]
- Hoplitocarcinus johannesboehmi, Beurlen 1928 [Homolidae]
- Hoploparia albertaensis, Tshudy 2005 [Nephropidae]
- Hoploparia alpinus, Van Straelen 1936 [Nephropidae]
- Hoploparia antarctica, Wilckens 1907 [Nephropidae]
- Hoploparia aspera, Harbort 1905 [Nephropidae]
- Hoploparia bearpawensis, Feldmann et al. 1977 [Nephropidae]
- Hoploparia belli, McCoy 1849 [Nephropidae]
- Hoploparia benedeni, Pelseneer 1886 [Nephropidae]
- Hoploparia biserialis, Fritsch and Kafka 1887 [Nephropidae]
- Hoploparia buntingi, Feldmann and Holland 1971 [Nephropidae]
- Hoploparia calcarifera, Schluter 1879 [Nephropidae]
- Hoploparia catalunica, Garassino et al. 2009 [Nephropidae]
- Hoploparia collignoni, Van Straelen 1949 [Nephropidae]
- Hoploparia columbiana, Beurlen 1938 [Nephropidae]
- Hoploparia corneti, Van Straelen 1921 [Nephropidae]
- Hoploparia dentata, Roemer 1841 [Nephropidae]
- Hoploparia edwardsi, Robineae-Desvoidy 1849 [Nephropidae]
- Hoploparia eocenica, Lorenthey 1929 [Nephropidae]
- Hoploparia falcifer, Fritsch and Kafka 1887 [Nephropidae]
- Hoploparia fraasi, Bohm 1891 [Nephropidae]
- Hoploparia gabbi, Pilsbry 1901 [Nephropidae]
- Hoploparia gadzicki, Feldmann and Crame 1998 [Nephropidae]
- Hoploparia gammaroides, McCoy 1849 [Nephropidae]
- Hoploparia gladiator, Pilsbry 1901 [Nephropidae]
- Hoploparia groenlandica, Ravn 1903 [Nephropidae]
- Hoploparia hakelensis, Fraas 1878 [Nephropidae]
- Hoploparia hemprichi, Merin 1941 [Nephropidae]
- Hoploparia heterodon, Bosquet 1854 [Nephropidae]
- Hoploparia intermedia, Secretan 1964 [Nephropidae]
- Hoploparia kamimurai, Kato and Karasawa 2006 [Nephropidae]
- Hoploparia kamuy, Karasawa and Hayakawa 2000 [Nephropidae]
- Hoploparia klebsi, Noetling 1885 [Nephropidae]
- Hoploparia lehmanni, Haas 1889 [Nephropidae]
- Hoploparia mcnairyensis, Rathbun 1926 [Nephropidae]
- Hoploparia mesembria, Etheridge 1917 [Nephropidae]
- Hoploparia minima, Tribolet 1876 [Nephropidae]
- Hoploparia miyamotoi, Karasawa 1998 [Nephropidae]
- Hoploparia munchki, Pelseneer 1886 [Nephropidae]
- Hoploparia natsumiae, Karasawa et al. 2008 [Nephropidae]
- Hoploparia nephropiformis, Schluter 1879 [Nephropidae]
- Hoploparia percyi, Beneden 1872 [Nephropidae]
- Hoploparia perseneeri, Van Straelen 1936 [Nephropidae]
- Hoploparia pusilla, Secretan 1964 [Nephropidae]
- Hoploparia saxbi, McCoy 1849 [Nephropidae]
- Hoploparia scabra, Bell 1863 [Nephropidae]
- Hoploparia schluteri, Tribolet 1876 [Nephropidae]
- Hoploparia sculpta, Secretan 1964 [Nephropidae]
- Hoploparia senonensis, Forir 1887 [Nephropidae]
- Hoploparia shastensis, Rathbun 1929 [Nephropidae]
- Hoploparia stokesi, Weller 1903 [Nephropidae]
- Hoploparia suecica, Schluter 1879 [Nephropidae]
- Hoploparia sulcicauda, Schluter 1879 [Nephropidae]
- Hoploparia tennesseensis, M. J. Rathbun and B. Wade 1926 [Nephropidae]
- Hoploparia triboleti, Borrisiak 1904 [Nephropidae]
- Hoploparia trigeri, A. Milne and Edwards 1886 [Nephropidae]
- Hoploparia victoriae, Quayle 1987 [Nephropidae]
- Hoploparia wardi, Quayle 1987 [Nephropidae]
- Huhatanka kiowana, Scott 1970 [Decapoda]
- Huxleycaris, Bravi and Garassino 1998 [Axiidae]
- Huxleycaris beneventana, Bravi and Garassino 1998 [Axiidae]
- Hyas aranaeus, Linnaeus 1758 [Oregoniidae]
- Hyas meridionalis, Glaessner 1928 [Oregoniidae]
- Hyas oranensis, Van Straelen 1936 [Oregoniidae]
- Hyas tani, Hu 1984 [Oregoniidae]
- Hyas tsuchidai, Imaizumi 1952 [Oregoniidae]
- Hyastenus corallinus, De Angeli and Beschin 2008 [Epialtidae]
- Hyastenus diacanthus, De Haan 1839 [Epialtidae]
- Hydrothelphusinae, subfamily, Bott 1955 [Potamonautidae]
- Hymenoceridae, family, Ortmann 1890 [Decapoda]
- Hymenosomatidae, family, MacLeay 1838 [Decapoda]
- Hypocolpus, Rathbun 1897 [Xanthidae]
- Hypocolpus abbotti, Rathbun 1894 [Xanthidae]
- Hypoconchinae, subfamily, Guinot and Tavares 2003 [Dromiidae]
- Ibericancer, Artal 2008 [Ibericancridae]
- Ibericancer sanchoi, Artal 2008 [Ibericancridae]
- Ibericancridae, family, Artal 2008 [Decapoda]
- Ifasya, Garassino and Teruzzi 1995 [Decapoda]
- Ifasya madagascariensis, Van Straelen 1933 [Decapoda]
- Ifasya straeleni, Garassino and Teruzzi 1995 [Decapoda]
- Ilia nucleus, Linnaeus 1758 [Leucosiidae]
- Ilia pliocaenica, Ristori 1891 [Leucosiidae]
- Ilia valdellae, Fabiani 1908 [Leucosiidae]
- Ilyograpsinae, subfamily, Stevcic 2005 [Macrophthalmidae]
- Inachoididae, family, Dana 1851 [Decapoda]
- Inachus lethaeus, Smirnov 1929 [Inachidae]
- Inachus phalangium, Fabricius 1775 [Inachidae]
- Iphiculidae, family, Alcock 1896 [unclassified family]
- Iphiculus granulatus, Morris and Collins 1991 [Iphiculidae]
- Iphiculus miriensis, Morris and Collins 1991 [Iphiculidae]
- Iphiculus sexspinosus, Morris and Collins 1991 [Iphiculidae]
- Italialbunea, Boyko 2004 [Albuneidae]
- Italialbunea lutetiana, Beschin and De Angeli 1984 [Albuneidae]
- Ixa cylindrus, Fabricius 1777 [Leucosiidae]
- Jabaloya, Garassino et al. 2009 [unclassified genus]
- Jabaloya aragonensis, Garassino et al. 2009 [Jabaloya]
- Jacquinotia, Rathbun 1915 [Majinae]
- Jacquinotia edwardsi, Jacquinot and Lucas 1853 [Jacquinotia]
- Jakobsenius cretaceous, Segerberg 1900 [Palaeoxanthopsidae]
- Jasus flemingi, Glaessner 1960 [Palinuridae]
- Jaxea kuemeli, Bachmayer 1954 [Laomediidae]
- Jaxea nocturna, Nardo 1847 [Laomediidae]
- Jilinicaris, Schram et al. 2000 [Decapoda]
- Jilinicaris chinensis, Schram 2000 [Decapoda]
- Jonesius oligocenicus, Beschin et al. 2001 [Domeciidae]
- Jonesius planus, Muller 1996 [Domeciidae]
- Jurapylocheles, Van Bakel 2008 [Decapoda]
- Jurapylocheles malutka, Van Bakel 2008 [Decapoda]
- Jurellana, C. Schweitzer and R. Feldmann 2010 [Porcellanidae]
- Jurellana tithonia, C. Schweitzer and R. Feldmann 2010 [Porcellanidae]
- Justitia, Holthuis 1946 [Palinuridae]
- Justitia desmaresti, Massalongo 1854 [Palinuridae]
- Justitia vicetina, Beschin et al. 2001 [Palinuridae]
- Kakaducarididae, family, Bruce 1993 [Decapoda]
- Karasawaia, Vega 2008 [Cheiragonidae]
- Karasawaia markgrafi, Lorenthey 1907 [Cheiragonidae]
- Kerepesia, Muller 1976 [Dromiidae]
- Kerepesia viai, Muller 1976 [Dromiidae]
- Kiwaidae, family, Mac Pherson et al. 2005 [Decapoda]
- Kiwaoidea, superfamily, Mac Pherson et al. 2005 [Decapoda]
- Knebelia bilobata, Munster 1839 [Eryonidae]
- Koelga, Munster 1839 [Decapoda]
- Koelga curvirostris, Munster 1839 [Decapoda]
- Koelga nuensteri, Schweigert and Garassino 2004 [Decapoda]
- Konidromites, C. Schweitzer and R. Feldmann 2010 [Konidromitidae]
- Konidromites bjorki, Bishop and Williams 2000 [Konidromitidae]
- Konidromites gibbus, Reuss 1858 [Konidromitidae]
- Konidromites izetti, Bishop 1988 [Konidromitidae]
- Konidromites schneideri, Stolley 1924 [Konidromitidae]
- Konidromitidae, family, C. Schweitzer and R. Feldmann 2010 [Decapoda]
- Konidromitoidea, superfamily, C. Schweitzer and R. Feldmann 2010 [Decapoda]
- Kraussiinae, subfamily, Ng 1993 [Xanthidae]
- Kromtitis, Muller 1984 [Dynomenidae]
- Kromtitis bicuspidatus, Beschin et al. 2009 [Dynomenidae]
- Kromtitis daniensis, Collins 2010 [Dynomenidae]
- Kromtitis koberi, Bachmayer and Tollmann 1953 [Dynomenidae]
- Kromtitis koberiformis, Beschin et al. 2007 [Dynomenidae]
- Kromtitis levigatus, Beschin et al. 2007 [Dynomenidae]
- Kromtitis lothi, Forster and Mundlos 1982 [Dynomenidae]
- Kromtitis pentagonalis, Muller and Collins 1991 [Dynomenidae]
- Kromtitis spinulata, Portell and Collins 2004 [Dynomenidae]
- Kromtitis subovatus, Beschin et al. 2007 [Dynomenidae]
- Kromtitis tetratuberculatus, Beschin 2002 [Dynomenidae]
- Lachnopodus bidentatus, A. Milne-Edwards 1867 [Xanthidae]
- Lachnopodus murdjadjensis, Saint Martin and Muller 1988 [Xanthidae]
- Lachnopodus subacutus, Stimpson 1859 [Xanthidae]
- Laevicarcinus dockeryi, Blow and Manning 1996 [Panopeidae]
- Laevicarcinus egerensis, Lorenthey 1929 [Panopeidae]
- Laevicarcinus lioyi, Beschin et al. 2007 [Panopeidae]
- Laeviprosopon lazarae, Frantescu 2010 [Prosopidae]
- Laleonectes, Manning and Chace 1990 [Portunidae]
- Laleonectes vocans, A. Milne-Edwards 1878 [Portunidae]
- Lambropsis wanneri, Lorenthey 1909 [Xanthidae]
- Lammuastacus, Aguirre Urreta 1992 [Decapoda]
- Lammuastacus longirostris, Aguirre Urreta 1992 [Decapoda]
- Laomedia, De Haan 1847 [Laomediidae]
- Laomedia praestacina, Karasawi 1989 [Laomediidae]
- Laomediidae, family, Borradaile 1903 [Decapoda]
- Lathahypossia aculeata, Busulini 1984 [Hypothalassiidae]
- Latheticocarcinus, Bishop 1988 [Homolidae]
- Latheticocarcinus adelphinus, Collins and Rasmussen 1992 [Homolidae]
- Latheticocarcinus affinus, Jakobsen and Collins 1997 [Homolidae]
- Latheticocarcinus atlanticus, Roberts 1962 [Homolidae]
- Latheticocarcinus brevis, Collins et al. 1993 [Homolidae]
- Latheticocarcinus brightoni, Wright and Collins 1972 [Homolidae]
- Latheticocarcinus centurialis, Bishop 1992 [Homolidae]
- Latheticocarcinus declinatus, Collins et al. 1995 [Homolidae]
- Latheticocarcinus dispar, Roberts 1962 [Homolidae]
- Latheticocarcinus ludvigseni, C. Schweitzer et al. 2004 [Homolidae]
- Latheticocarcinus pikeae, Bishop and Brannen 1992 [Homolidae]
- Latheticocarcinus punctatus, Rathbun 1917 [Homolidae]
- Latheticocarcinus schlueteri, Beurlen 1928 [Homolidae]
- Latheticocarcinus shapiroi, Bishop 1988 [Homolidae]
- Latheticocarcinus spinigus, Jakobsen and Collins 1997 [Homolidae]
- Latheticocarcinus transiens, Segerberg 1900 [Homolidae]
- Laticarpilius, C. E. Schweitzer et al. 2010 [Carpiliidae]
- Laticarpilius aegyptus, C. E. Schweitzer et al. 2010 [Carpiliidae]
- Laticarpilius bispinosus, Satsangi and Changkakoti 1989 [Carpiliidae]
- Latreilliidae, family, Stimpson 1858 [Decapoda]
- Latulambrus, Tan and Ng 2007 [Parthenopidae]
- Latulambrus occidentalis, Dana 1854 [Parthenopidae]
- Laurentiella, Le Loeuff and Intes 1974 [Laomediidae]
- Laurentiella imaizumii, Karasawa 1993 [Laomediidae]
- Lecythocaris stoicai, Frantescu 2010 [Lecythocaridae]
- Leiolambrus longifrons, Quayle and Collins 1981 [Parthenopidae]
- Leiothorax, Pinna 1974 [Decapoda]
- Leiothorax triasicus, Pinna 1974 [Decapoda]
- Leotodius, A. Milne-Edwards 1863 [Xanthidae]
- Lepidophthalmus, Holmes 1904 [Callianassidae]
- Lepidophthalmus jamaicense, Schmitt 1935 [Callianassidae]
- Leptodius, A. Milne-Edwards 1863 [Xanthidae]
- Leptodius crosnieri, Karasawa 1993 [Xanthidae]
- Leptodius granulatus, Portell and Collins 2004 [Xanthidae]
- Leptodius morrisi, Karasawa 1993 [Xanthidae]
- Leptomithrax atavus, Glaessner 1960 [Leptomithrax]
- Leptomithrax edwardsii, De Haan 1837 [Leptomithrax]
- Leptomithrax elegans, Jenkins 1985 [Leptomithrax]
- Leptomithrax elongatus, McLay 1995 [Leptomithrax]
- Leptomithrax griffini, Feldmann and Maxwell 1990 [Leptomithrax]
- Leptomithrax irirangi, Glaessner 1960 [Leptomithrax]
- Leptomithrax martensis, Jenkins 1985 [Leptomithrax]
- Leptomithrax uruti, Glaessner 1960 [Leptomithrax]
- Lessinigalathea, De Angeli and Garassino 2002 [Galatheidae]
- Lessinigalathea regale, De Angeli and Garassino 2002 [Galatheidae]
- Lessinioplax, Beschin and De Angeli 2004 [Litocheiridae]
- Lessinioplax rugosa, Beschin and De Angeli 2004 [Litocheiridae]
- Lessinioplax simplex, Beschin and De Angeli 2004 [Litocheiridae]
- Leucosia anatum, Herbst 1783 [Leucosiidae]
- Leucosia calcarata, Collins 2003 [Leucosiidae]
- Leucosia craniolaris, Linnaeus 1758 [Leucosiidae]
- Leucosia longiangulata, Morris and Collins 1991 [Leucosiidae]
- Leucosia martini, Karasawa 2008 [Leucosiidae]
- Leucosia ovalata, Hu and Tao 1996 [Leucosiidae]
- Leucosia serenei, Morris and Collins 1991 [Leucosiidae]
- Leucosia subrhomboidalis, Desmarest 1822 [Leucosiidae]
- Leucosia subrhomboidea, Hu and Tao 1996 [Leucosiidae]
- Leucosia taiwanica, Hu and Tao 1996 [Leucosiidae]
- Leucosia takamii, Karasawa 1993 [Leucosiidae]
- Leucosia tricarinata, Martin 1880 [Leucosiidae]
- Leucosia tutongensis, Morris and Collins 1991 [Leucosiidae]
- Leucosilia jurinii, De Saussure 1853 [Leucosiidae]
- Leurocyclus, Rathbun 1897 [Inachoididae]
- Leurocyclus primigenius, Aguirre-Urreta 1990 [Inachoididae]
- Liagore, De Haan 1833 [Xanthidae]
- Liagore rubromaculata, De Haan 1835 [Xanthidae]
- Lianira, Beschin et al. 1991 [Palaeocorystidae]
- Lianira beschini, Beschin 1991 [Palaeocorystidae]
- Lianira convexa, Beschin 1991 [Palaeocorystidae]
- Lianira isidoroi, Beschin et al. 2007 [Palaeocorystidae]
- Libanocaris, Garassino 1994 [Decapoda]
- Libanocaris rogeri, Garassino 1994 [Decapoda]
- Libinia dubia, H. Milne-Edwards 1834 [Epialtidae]
- Libinia emarginata, Leach 1815 [Epialtidae]
- Libinia peruviensis, Carriol et al. 1987 [Epialtidae]
- Libinia setosa, Lockington 1877 [Epialtidae]
- Libystes nitidus, A. Milne-Edwards 1867 [Catoptridae]
- Lignihomola, Collins 1997 [Homolidae]
- Lignihomola etheridgei, Woodward 1892 [Homolidae]
- Linuparus africanus, Glaessner 1932 [Palinuridae]
- Linuparus bererensis, Secretan 1964 [Palinuridae]
- Linuparus bigranulatus, Glaessner 1930 [Palinuridae]
- Linuparus carteri, Reed 1911 [Palinuridae]
- Linuparus dentatus, Van Straelen 1936 [Palinuridae]
- Linuparus duelmenensis, Geinitz 1849 [Palinuridae]
- Linuparus eocenicus, Woods 1925 [Palinuridae]
- Linuparus euthymei, Roman and Mazeran 1920 [Palinuridae]
- Linuparus hantscheli, Mertin 1941 [Palinuridae]
- Linuparus japonicus, Nagao 1931 [Palinuridae]
- Linuparus korura, Feldmann and Bearlin 1988 [Palinuridae]
- Linuparus laevicephalus, Mertin 1941 [Palinuridae]
- Linuparus macellarii, R. Feldmann and Tshudy 1988 [Palinuridae]
- Linuparus petkovici, Bachmayer and Markovic 1955 [Palinuridae]
- Linuparus pustulosus, Feldmann et al. 1977 [Palinuridae]
- Linuparus richardsi, Roberts 1962 [Palinuridae]
- Linuparus schluteri, Tribolet 1874 [Palinuridae]
- Linuparus scyllariformis, Bell 1858 [Palinuridae]
- Linuparus spinosus, Collins and Rasmussen 1992 [Palinuridae]
- Linuparus stolleyi, Haas 1889 [Palinuridae]
- Linuparus straili, Forir 1887 [Palinuridae]
- Linuparus tarrantensis, Davidson 1963 [Palinuridae]
- Liocarcinus atropatanus, Aslanova and Dschafarova 1975 [Carcinidae]
- Liocarcinus corrugatus, Pennant 1777 [Carcinidae]
- Liocarcinus depurator, Linnaeus 1758 [Carcinidae]
- Liocarcinus holsatus, Fabricius 1798 [Carcinidae]
- Liocarcinus kuehni, Bachmayer 1953 [Carcinidae]
- Liocarcinus lancetidactylus, Smirnov 1929 [Carcinidae]
- Liocarcinus marmoreus, Leach 1816 [Carcinidae]
- Liocarcinus oligocaenicus, Pauca 1929 [Carcinidae]
- Liocarcinus oroszyi, Bachmayer 1953 [Carcinidae]
- Liocarcinus praearcuatus, Muller 1996 [Carcinidae]
- Liocarcinus pusillus, Leach 1816 [Carcinidae]
- Liocarcinus rakosensis, Lorenthey 1929 [Carcinidae]
- Liocaris quadratus, Van Straelen 1924 [Decapoda]
- Liomera, Dana 1851 [Xanthidae]
- Liomera cinctimana, White 1847 [Xanthidae]
- Liomera laevis, A. Milne-Edwards 1873 [Xanthidae]
- Liomera monticulosa, A. Milne-Edwards 1873 [Xanthidae]
- Liomera rubra, A. Milne-Edwards 1865 [Xanthidae]
- Liomera stimpsonii, A. Milne-Edwards 1865 [Xanthidae]
- Liomera sublensis, Rathbun 1945 [Xanthidae]
- Liomera transversa, Hu 1983 [Xanthidae]
- Liomera venosa, H. Milne-Edwards 1834 [Xanthidae]
- Liomerinae, subfamily, Sakai 1976 [Xanthidae]
- Liopsalis, Von Meyer 1842 [Carpiliidae]
- Liopsalis anodon, Bittner 1875 [Carpiliidae]
- Liopsalis klipsteini, Von Meyer 1842 [Carpiliidae]
- Liopsalis simplex, Stoliczka 1871 [Carpiliidae]
- Lipaesthesius, Rathbun 1898 [Xanthidae]
- Lissocarcinus, Adams and White 1848 [Portunidae]
- Lissocarcinus szoeraenyiae, Muller 1974 [Portunidae]
- Lissocardia badensis, Assmann 1937 [Litogastroidae]
- Lissocardia magna, Von Meyer 1851 [Litogastroidae]
- Lissocardia silesiaca, von Meyer 1851 [Litogastroidae]
- Lithodoidea, superfamily, Samouelle 1819 [Decapoda]
- Lithophylacidae, family, Van Straelen 1936 [Decapoda]
- Lithophylax trigeri, A. Milne-Edwards and Brocchi 1879 [Lithophylacidae]
- Litocheiridae, family, Stevcic 2005 [Decapoda]
- Litogaster luxoviensis, Etallon 1859 [Litogastroidae]
- Litogaster obtusa, Von Meyer 1847 [Litogastroidae]
- Litogaster ornata, Von Meyer 1851 [Litogastroidae]
- Litogaster tietenbachensis, Assmann 1927 [Litogastroidae]
- Litogaster tuberculata, Assmann 1927 [Litogastroidae]
- Litograpsus, C. Schweitzer and Karasawa 2004 [Grapsidae]
- Litograpsus parvus, Muller and Collins 1991 [Grapsidae]
- Lobipetrolisthes, De Angeli and Garassino 2002 [Porcellanidae]
- Lobipetrolisthes blowi, De Angeli and Garassino 2002 [Porcellanidae]
- Lobocarcinus aegypticus, Lorenthey 1909 [Cancridae]
- Lobocarcinus catalaunicus, Van Straelen 1927 [Cancridae]
- Lobocarcinus indicus, Glaessner 1933 [Cancridae]
- Lobocarcinus lumacopius, Anderson and R. Feldmann 1995 [Cancridae]
- Lobocarcinus paulinowuettemburgensis, Von Meyer 1847 [Cancridae]
- Lobocarcinus pentanodosus, Collins and Barber 1998 [Cancridae]
- Lobocarcinus pustulosus, R. Feldmann and Fordyce 1996 [Cancridae]
- Lobocarcinus sismondai, Von Meyer 1843 [Cancridae]
- Lobogalenopsis, Muller and Collins 1991 [Pilumnidae]
- Lobogalenopsis quadrilobata, Lorenthey 1897 [Pilumnidae]
- Lobonotus australis, Fritsch and Kafka 1878 [Tumidocarcinidae]
- Lobonotus purdyi, Blow and Manning 1996 [Tumidocarcinidae]
- Lobonotus sandersi, Blow and Manning 1998 [Tumidocarcinidae]
- Lobonotus sculptus, A. Milne-Edwards 1863 [Tumidocarcinidae]
- Lobulata lobulata, R. Feldmann and Casadio 1995 [Palaeoxanthopsidae]
- Loerentheya carinata, Beurlen 1929 [Retroplumidae]
- Loerenthopluma, Beschin et al. 1996 [unclassified genus]
- Loerenthopluma danielae, Van Bakel et al. 2010 [Loerenthopluma]
- Loerenthopluma lata, Beschin 1996 [Loerenthopluma]
- Loerenthoplumopsa, C. Schweitzer et al. 2010 [Retroplumidae]
- Lomisidae, family, Bouvier 1895 [Decapoda]
- Lomisoidea, superfamily, Bouvier 1895 [Decapoda]
- Londinimola, Collins and Saward 2006 [Homolidae]
- Londinimola williamsi, Collins and Saward 2006 [Homolidae]
- Longichela, Garassino and Teruzzi 1993 [Decapoda]
- Longichela orobica, Garassino and Teruzzi 1993 [Decapoda]
- Longodromites bicornutus, Mutiu and Badaluta 1971 [Longodromitidae]
- Longodromites meyeri, Etallon 1859 [Longodromitidae]
- Longoporcellana, Muller and Collins 1991 [Porcellanidae]
- Longoporcellana denticulata, Muller and Collins 1991 [Porcellanidae]
- Longoporcellana lobata, De Angeli and Garassino 2002 [Porcellanidae]
- Longusorbiidae, family, H. Karasawa et al. 2008 [Decapoda]
- Longusorbis quadratus, Fraaije et al. 2006 [Longusorbiidae]
- Lophomastix, Benedict 1904 [Blepharipodidae]
- Lophomastix altoonaensis, Nybory and Vega 2008 [Blepharipodidae]
- Lophomastix antiqua, C. Schweitzer and Boyko 2000 [Blepharipodidae]
- Lophomastix boykoi, Nuborg and Vega 2008 [Blepharipodidae]
- Lophomastix kellyi, Nyborg and Vega 2008 [Blepharipodidae]
- Lophopanopeus corallinus, Portell and Collins 2004 [Panopeidae]
- Lophopanopeus diegensis, Rathbun 1900 [Panopeidae]
- Lophopanopeus leucomanus, Lockington 1877 [Panopeidae]
- Lophopanopeus maculoides, Collins and Todd 2005 [Panopeidae]
- Lophopanopeus toomeyorum, Portell and Collins 2004 [Panopeidae]
- Lophoranina aculeata, A. Milne-Edwards 1881 [Palaeocorystidae]
- Lophoranina aldrovandii, Ranzani 1820 [Palaeocorystidae]
- Lophoranina bakerti, A. Milne-Edwards 1872 [Palaeocorystidae]
- Lophoranina barroisi, Brocchi 1877 [Palaeocorystidae]
- Lophoranina bittneri, Lorenthey 1902 [Palaeocorystidae]
- Lophoranina cinquqecrista, R. Feldmann et al. 2010 [Palaeocorystidae]
- Lophoranina cristaspina, Vega and Cosma 2001 [Palaeocorystidae]
- Lophoranina georgina, Rathbun 1935 [Palaeocorystidae]
- Lophoranina kemmelingi, Van Straelen 1924 [Palaeocorystidae]
- Lophoranina laevifrons, Bittner 1875 [Palaeocorystidae]
- Lophoranina levantina, Lewy 1977 [Palaeocorystidae]
- Lophoranina marestiana, Konig 1825 [Palaeocorystidae]
- Lophoranina maxima, Beschin 2004 [Palaeocorystidae]
- Lophoranina persica, Withers 1932 [Palaeocorystidae]
- Lophoranina porifera, Woodward 1866 [Palaeocorystidae]
- Lophoranina precocia, R. Feldmann 1996 [Palaeocorystidae]
- Lophoranina quinquespinosa, Rathbun 1945 [Palaeocorystidae]
- Lophoranina reussi, Woodward 1866 [Palaeocorystidae]
- Lophoranina rossi, Blow and Manning 1996 [Palaeocorystidae]
- Lophoranina soembaensis, Van Straelen 1938 [Palaeocorystidae]
- Lophoranina straeleni, Via 1959 [Palaeocorystidae]
- Lophoranina tchihatcheffi, A. Milne-Edwards 1866 [Palaeocorystidae]
- Lophoranina toyosimai, Yabe and Sugiyama 1935 [Palaeocorystidae]
- Lophoraninella cretacea, Dames 1886 [Raninidae]
- Lovaracarcinus, De Angeli and Beschin 2010 [Zanthopsidae]
- Lovaracarcinus granulatus, De Angeli and Beschin 2010 [Zanthopsidae]
- Lovarina cristata, Beschin et al. 1991 [Palaeocorystidae]
- Loxorhynchus crispatus, Stimpson 1857 [Epialtidae]
- Loxorhynchus grandis, Stimpson 1857 [Epialtidae]
- Lucanthonisia, Van Bakel 2008 [Basinotopidae]
- Lucanthonisia eotvoesi, Muller 1976 [Basinotopidae]
- Lucanthonisia praemia, Van Bakel 2008 [Basinotopidae]
- Luciferidae, family, De Haan 1849 [Decapoda]
- Luisogalathea, Karasawa and Hayakawa 2000 [Galatheidae]
- Luisogalathea cobbani, Bishop 1985 [Galatheidae]
- Luisogalathea tomitai, Karasawa and Hayakawa 2000 [Galatheidae]
- Lupeites, Fritsch and Kafka 1887 [Decapoda]
- Lupeites granulatus, Fritsch and Kafka 1887 [Decapoda]
- Lupocyclinae, subfamily, Paulson 1875 [Portunidae]
- Lupocyclus, Adams and White 1848 [Portunidae]
- Lupocyclus tuberculosus, Karasawa 1993 [Portunidae]
- Lydia, Gistl 1848 [Oziidae]
- Lydia kianobesana, Hu 1993 [Oziidae]
- Lyreidina, Fraaye and Van Bakel 1998 [Palaeocorystidae]
- Lyreidina pyriformis, Fraaye and Van Bakel 1998 [Palaeocorystidae]
- Lyreidus antarcticus, R. Feldmann and Zinsmeister 1984 [Palaeocorystidae]
- Lyreidus bennetti, R. Feldmann and Maxwell 1990 [Palaeocorystidae]
- Lyreidus elegans, Glaessner 1960 [Palaeocorystidae]
- Lyreidus hookeri, R. Feldmann 1992 [Palaeocorystidae]
- Lyreidus hungaricus, Beurlen 1939 [Palaeocorystidae]
- Lyreidus paronae, Crema 1895 [Palaeocorystidae]
- Lyreidus teshimai, Fujiyama and Takeda 1980 [Palaeocorystidae]
- Macroacaena alseana, Rathbun 1932 [Palaeocorystidae]
- Macroacaena bispinulata, Collins and Rasmussen 1992 [Palaeocorystidae]
- Macroacaena elongata, A. Milne-Edwards 1862 [Palaeocorystidae]
- Macroacaena franconia, Schweigert 2004 [Palaeocorystidae]
- Macroacaena fudoujii, Karasawa 2000 [Palaeocorystidae]
- Macroacaena marionae, Tucker 1998 [Palaeocorystidae]
- Macroacaena rosenkrantzi, Collins and Rasmussen 1992 [Palaeocorystidae]
- Macrocheira ginzanensis, Imaizumi 1965 [Inachidae]
- Macrocheira longirostra, C. Schweitzer and R. Feldmann 1999 [Inachidae]
- Macrocheira teglandi, Rathbun 1926 [Inachidae]
- Macrocheira yabei, Imaizumi 1957 [Inachidae]
- Macromaxillocarididae, family, Alvarez 2006 [Decapoda]
- Macromedaeus, Ward 1942 [Xanthidae]
- Macromedaeus distinguendus, De Haan 1835 [Xanthidae]
- Macropenaeus, Garassino 1994 [Decapoda]
- Macropenaeus incertus, Roger 1946 [Decapoda]
- Macrophthalmidae, family, Dana 1851 [Decapoda]
- Macrophthalminae, subfamily, Dana 1851 [Macrophthalmidae]
- Macrophthalmus aquensis, A. Milne-Edwards and Brocchi 1879 [Macrophthalmidae]
- Macrophthalmus depressus, Ruppell 1830 [Macrophthalmidae]
- Macrophthalmus japonicus, De Haan 1835 [Macrophthalmidae]
- Macrophthalmus latifrons, Haswell 1882 [Macrophthalmidae]
- Macrophthalmus leptophthalmus, H. Milne-Edwards 1852 [Macrophthalmidae]
- Macrophthalmus serratus, Adams and White 1848 [Macrophthalmidae]
- Macrophthalmus setosus, H. Milne-Edwards 1852 [Macrophthalmidae]
- Macrophthalmus viai, Karasawa and Inoue 1992 [Macrophthalmidae]
- Macropipidae, family, W. Stephenson and B. Campbell 1960 [Decapoda]
- Macropipus gruneri, Bachmayer and Rutsch 1962 [Macropipidae]
- Macropipus ovalipes, Secretan 1975 [Macropipidae]
- Macropipus tuberculatus, Roux 1828 [Macropipidae]
- Madaeus, Dana 1851 [Xanthidae]
- Madaeus mbalavuensis, Rathbun 1945 [Xanthidae]
- Madaeus variabilis, Rathbun 1945 [Xanthidae]
- Maeandricampus, C. Schweitzer and R. Feldmann 2002 [Macropipidae]
- Maeandricampus granuliferum, Glaessner 1960 [Macropipidae]
- Magila denticulata, Munster 1839 [Axiidae]
- Magila desmarestii, Munster 1839 [Axiidae]
- Magila dissimilis, Carter 1886 [Axiidae]
- Magila dura, Moericke 1889 [Axiidae]
- Magila latimana, Munster 1839 [Axiidae]
- Magila levimana, Carter 1886 [Axiidae]
- Magila parvula, Oppel 1862 [Axiidae]
- Magila pichleri, Oppel 1862 [Axiidae]
- Magila rougemonti, Tribolet 1873 [Axiidae]
- Magila straeleni, Patrulius 1959 [Axiidae]
- Magyarcarcinus, C. Schweitzer and Karasawa 2004 [Goneplacidae]
- Magyarcarcinus loczanus, Lorenthey 1898 [Goneplacidae]
- Maingrapsus, Tessier 1999 [Litocheiridae]
- Maingrapsus quadratus, Tessier 1999 [Litocheiridae]
- Mainhepatiscus, De Angeli and Beschin 1999 [Aethridae]
- Mainhepatiscus zannatoi, De Angeli and Beschin 1999 [Aethridae]
- Maja aquinado, Herbst 1788 [Maja]
- Maja arambourgi, Van Straelen 1936 [Maja]
- Maja austriaca, Bachmayer 1953 [Maja]
- Maja biaensis, Lorenthey 1929 [Maja]
- Maja crispata, Risso 1826 [Maja]
- Maja dominoleuae, Hu and Tao 1826 [Maja]
- Maja hungarica, Lorenthey 1929 [Maja]
- Maja miocaenica, Lorenthey 1907 [Maja]
- Maja morii, Kato 1996 [Maja]
- Maja orbigniana, Millet 1854 [Maja]
- Maja oroszyi, Bachmayer 1953 [Maja]
- Maja robinsoni, Jenkins 1985 [Maja]
- Maja tomidai, Kato 2002 [Maja]
- Majinae, subfamily, Samouelle 1819 [unclassified subfamily]
- Malmuncina, Schweigert and Garassino 2003 [Uncinidae]
- Malmuncina wulfi, Schweigert and Garassino 2003 [Uncinidae]
- Marocarcinidae, family, Guinot et al. 2008 [Decapoda]
- Marocarcinus, Guinot et al. 2008 [Marocarcinidae]
- Marocarcinus pasinii, Guinot et al. 2008 [Marocarcinidae]
- Martinetta palmeri, Blow and Manning 1997 [Zanthopsidae]
- Martinocarcinidae, family, C. Schweitzer et al. 2009 [Decapoda]
- Martinocarcinus ickeae, Bohm 1922 [Martinocarcinidae]
- Mascaranada, Vega and R. Feldmann 1991 [Carcineretidae]
- Mascaranada difuntaensis, Vega and R. Feldmann 1991 [Carcineretidae]
- Matutidae, family, De Haan 1841 [Decapoda]
- Matutites anthonyae, Blow and Manning 1996 [Aethridae]
- Maurimia, Martins-Neto 2001 [Goniodromitidae]
- Maurimia sergipensis, Beurlen 1965 [Goniodromitidae]
- Mcrocarcinidae, family, Guinot et al. 2008 [Decapoda]
- Mecochirus chilensis, Forster and Von Hillebrandt 1984 [Mecochiridae]
- Mecochirus clypeatus, Carter 1898 [Mecochiridae]
- Mecochirus dubius, Munster 1839 [Mecochiridae]
- Mecochirus eckerti, Frentzen 1937 [Mecochiridae]
- Mecochirus foresti, Secretan 1968 [Mecochiridae]
- Mecochirus germari, Garassino 1996 [Mecochiridae]
- Mecochirus grandis, Quenstedt 1856 [Mecochiridae]
- Mecochirus houdardi, Van Straelen 1936 [Mecochiridae]
- Mecochirus leionoton, Krause 1891 [Mecochiridae]
- Mecochirus longimanatus, Schlotheim 1822 [Mecochiridae]
- Mecochirus marwicki, Glaessner 1960 [Mecochiridae]
- Mecochirus minimus, Hee 1924 [Mecochiridae]
- Mecochirus olifex, Quenstedt 1856 [Mecochiridae]
- Mecochirus pearcei, McCoy 1849 [Mecochiridae]
- Mecochirus peytoni, Woodward 1876 [Mecochiridae]
- Mecochirus rostratus, Collins and Rasmussen 1992 [Mecochiridae]
- Mecochirus socialis, Von Meyer 1841 [Mecochiridae]
- Medaeops, Guinot 1967 [Xanthidae]
- Medaeops megamiensis, Karasawa 1993 [Xanthidae]
- Medaeus granulatus, Martin 1880 [Xanthidae]
- Medorippe, Manning and Holthuis 1981 [Dorippidae]
- Medorippe ampla, Garassino 2004 [Dorippidae]
- Medorippe lanata, Linnaeus 1767 [Dorippidae]
- Medorippe tanabei, Karasawa 2000 [Dorippidae]
- Megachela, Schweigert 2003 [Axiidae]
- Megachela frickhingeri, Schweigert 2003 [Axiidae]
- Megaesthesiinae, subfamily, Stevcic 2005 [Chasmocarcinidae]
- Megamia, Karasawa 1993 [Xanthidae]
- Megamia anaglypta, Karasawa 1993 [Xanthidae]
- Megaxantho, Vega and R. Feldmann 2001 [Decapoda]
- Megaxantho zoque, Vega and R. Feldmann 2001 [Decapoda]
- Megokkos hexagonalis, Nagao 1932 [Macropipidae]
- Megokkos macrospinus, C. Schweitzer 2000 [Macropipidae]
- Menippe frescoensis, Remy 1960 [Oziidae]
- Menippe mercenaria, Say 1818 [Oziidae]
- Menippe nodifrons, Stimpson 1862 [Oziidae]
- Merocryptus, A. Milne-Edwards 1873 [Leucosiidae]
- Merocryptus altavillensis, De Angeli et al. 2010 [Leucosiidae]
- Mesogalathea striata, Remes 1895 [Galatheidae]
- Mesolambrus, Muller and Collins 1991 [Parthenopidae]
- Mesolambrus declinatus, Muller and Collins 1991 [Parthenopidae]
- Mesorhoea sexspinosa, Stimpson 1871 [Parthenopidae]
- Metacarcinus anthonyi, Rathbun 1897 [Cancridae]
- Metacarcinus danai, Natinos 1975 [Cancridae]
- Metacarcinus davidi, Nations 1968 [Cancridae]
- Metacarcinus gracilis, Dana 1852 [Cancridae]
- Metacarcinus granti, Rathbun 1932 [Cancridae]
- Metacarcinus izumoensis, Sakumoto et al. 1992 [Cancridae]
- Metacarcinus jenniferae, Nations 1975 [Cancridae]
- Metacarcinus magister, Dana 1852 [Cancridae]
- Metacarcinus minutoserratus, Nagao 1940 [Cancridae]
- Metacarcinus novazelandiae, Jacquinot 1853 [Cancridae]
- Metacarcinus starri, Berglund and Goedert 1996 [Cancridae]
- Metacarcinus tenax, Van Bakel et al. 2003 [Cancridae]
- Metanephrops elongatus, Hu and Tao 2000 [Nephropidae]
- Metanephrops jenkinsi, Feldmann 1989 [Nephropidae]
- Metanephrops rossensis, Feldmann 1989 [Nephropidae]
- Metopograpsus, H. Milne-Edwards 1853 [Grapsidae]
- Metopograpsus badenis, Muller 2006 [Grapsidae]
- Metopoxantho, De Man 1904 [Xanthidae]
- Metopoxantho martini, De Man 1904 [Xanthidae]
- Meyeria gracilis, Glaessner 1932 [Mecochiridae]
- Meyeria ornata, Phillips 1829 [Mecochiridae]
- Meyeria schwartzi, Kitchin 1908 [Mecochiridae]
- Micheleidae, family, Sakai 1992 [Decapoda]
- Micippa antiqua, Beschin et al. 2001 [Majidae]
- Micippa hungarica, Lorenthey 1929 [Majidae]
- Micippa thalia, Herbst 1803 [Majidae]
- Microchela, Garassino 1994 [Decapoda]
- Microchela rostrata, Garassino 1994 [Decapoda]
- Microcorystes parvulus, Fritsch 1893 [Decapoda]
- Microdium, Reuss 1867 [Cancridae]
- Microdium nodulosum, Reuss 1867 [Cancridae]
- Micromaia elegans, Beschin 1985 [Majidae]
- Micromaia gulderritteri, Bachmayer 1950 [Majidae]
- Micromaia mainensis, Beschin 1985 [Majidae]
- Micromaia margaritata, Fabiani 1910 [Majidae]
- Micromaia meneguzzoi, Beschin 1985 [Majidae]
- Micromaia punctulata, Lorenthey 1929 [Majidae]
- Micromaia spinosa, Noetling 1885 [Majidae]
- Micromaia tuberculata, Bittner 1875 [Majidae]
- Micromaiinae, subfamily, Beurlen 1930 [Majidae]
- Micromithrax holsatica, Noetling 1881 [Corystidae]
- Micropanope, Stimpson 1871 [Xanthidae]
- Micropanope nuttingi, Rathbun 1898 [Xanthidae]
- Micropanope pulcherrima, Portell and Collins 2004 [Xanthidae]
- Micropanope truncatifrons, Rathbun 1898 [Xanthidae]
- Micropenaeus, Bravi and Garassino 1998 [Decapoda]
- Micropenaeus tenuirostris, Bravi and Garassion 1998 [Decapoda]
- Micropsalis bolcensis, Schauroth 1865 [Palaemonidae]
- Micropsalis papyracea, Von Meyer 1859 [Palaemonidae]
- Mictyridae, family, Dana 1851 [Decapoda]
- Minohellenus, Karasawa 1990 [Macropipidae]
- Minohellenus araucanus, Philippi 1887 [Macropipidae]
- Minohellenus chichibuensis, Kato 1996 [Macropipidae]
- Minohellenus inexpressus, C. Schweitzer and R. Feldmann 2002 [Macropipidae]
- Minohellenus macrocheilus, Kato and Karasawa 1994 [Macropipidae]
- Minohellenus minoensis, Karasawa 1990 [Macropipidae]
- Minohellenus quinquedentatus, Karasawa 1990 [Macropipidae]
- Minohellenus sexdentatus, Karasawa 1993 [Macropipidae]
- Minohellenus umemotoi, Karasawa 1993 [Macropipidae]
- Miocyclus, Muller 1979 [Cancridae]
- Miocyclus bulgaricus, Muller 1979 [Cancridae]
- Miograpsus, Fleming 1981 [Grapsidae]
- Miograpsus papaka, Fleming 1981 [Grapsidae]
- Miopipus, Muller 1984 [Carcinidae]
- Miopipus pygmeus, Brocchi 1883 [Carcinidae]
- Mioplax socialis, Bittner 1884 [Chasmocarcinidae]
- Miosesarma, Karasawa 1989 [Varunidae]
- Miosesarma japonicum, Karasawa 1989 [Varunidae]
- Miosesarma naguraense, Kato 1996 [Varunidae]
- Mioxaiva, Muller 1978 [Portunidae]
- Mioxaiva psammophila, Muller 1974 [Portunidae]
- Mithracia hollandi, Forster and Mundlos 1982 [Majidae]
- Mithracia libinioides, Bell 1858 [Majidae]
- Mithracia margaritifera, Beschin 1994 [Majidae]
- Mithracia oppioni, Larghi 2002 [Majidae]
- Mithracia soavensis, Beschin et al. 2010 [Majidae]
- Mithracites vectensis, Gould 1859 [Mithracitidae]
- Mithraculus, White 1847 [Majidae]
- Mithraculus forceps, A. Milne-Edwards 1875 [Majidae]
- Mithraculus ruber, Stimpson 1871 [Majidae]
- Mithrax donovani, Portell and Collins 2004 [Majidae]
- Mithrax hemphilli, Rathbun 1892 [Majidae]
- Mithrax hispidus, Herbst 1790 [Majidae]
- Mithrax spinosissimus, Lamarck 1818 [Majidae]
- Mithrax unguis, Portell and Collins 2004 [Majidae]
- Mithrax verrucosus, H. Milne-Edwards 1832 [Majidae]
- Monodaeus bortolottii, Delle Cave 1988 [Xanthidae]
- Monodaeus couchii, Couch 1851 [Xanthidae]
- Montezumella amenosi, Via 1959 [Cheiragonidae]
- Montezumella eichhorni, C. Schweitzer and Salva 2000 [Cheiragonidae]
- Montezumella elegans, Lorenthey 1929 [Cheiragonidae]
- Montezumella fraasi, Lorenthey 1909 [Cheiragonidae]
- Montezumella microporosa, Portell and Collins 2002 [Cheiragonidae]
- Montezumella pumicosa, Beschin 2002 [Cheiragonidae]
- Montezumella rutteni, Van Straelen 1933 [Cheiragonidae]
- Montezumella scabra, Quayle and Collins 1981 [Cheiragonidae]
- Morscrangon, Garassino and Jakobsen 2005 [Crangonidae]
- Morscrangon acutus, Garassino and Jakobsen 2005 [Crangonidae]
- Muelleroplax, Muller and Collins 1991 [Decapoda]
- Muelleroplax minima, Muller and Collins 1991 [Decapoda]
- Muelleroplax miniscula, Beschin et al. 2007 [Decapoda]
- Munida konara, C. Schweitzer and R. Feldmann 2000 [Galatheidae]
- Munida nishioi, Karasawa 1993 [Galatheidae]
- Munida ogaensis, Hatai and Kotaka 1970 [Galatheidae]
- Munida primaeva, Segerberg 1900 [Galatheidae]
- Munida quadroblonga, C. Schweitzer and R. Feldmann 2000 [Galatheidae]
- Munidopsis foersteri, Feldmann 1993 [Munidopsidae]
- Munidopsis lieskovensis, Hyzny and Schlogl 2010 [Munidopsidae]
- Munidopsis scabrosa, R. Feldmann and Wilson 1988 [Munidopsidae]
- Munitheites palfyi, Lorenthey 1929 [Galatheidae]
- Mursia armata, De Haan 1837 [Calappidae]
- Mursia aspina, C. Schweitzer and R. Feldmann 2000 [Calappidae]
- Mursia australiensis, Campbell 1971 [Calappidae]
- Mursia bekenuensis, Collins 2003 [Calappidae]
- Mursia circularis, Karasawa 1989 [Calappidae]
- Mursia creutzbergi, Collins and Donovan 2004 [Calappidae]
- Mursia granulosa, Collins and Donovan 2002 [Calappidae]
- Mursia harnicari, Hyzny and Schlogl 2010 [Calappidae]
- Mursia lienharti, Bachmayer 1962 [Calappidae]
- Mursia minuta, Karasawa 1993 [Calappidae]
- Mursia simplex, Remy 1960 [Calappidae]
- Mursia takahashii, Imaizumi 1952 [Calappidae]
- Mursilata, Hu and Tao 1996 [Calappidae]
- Mursilata chuangi, Hu and Tao 1996 [Calappidae]
- Mursilata kilmeri, Hu 1981 [Calappidae]
- Mursilata tzengi, Hu and Tao 1996 [Calappidae]
- Mursiopsis pustulosus, Ristori 1889 [Calappidae]
- Myra affinis, Bell 1855 [Leucosiidae]
- Myra amoena, Bohm 1922 [Leucosiidae]
- Myra arachnoides, Bohm 1922 [Leucosiidae]
- Myra brevisulcata, Morris and Collins 1991 [Leucosiidae]
- Myra celeris, Galil 2001 [Leucosiidae]
- Myra emarginata, Glaessner 1928 [Leucosiidae]
- Myra paenitensis, Via 1941 [Leucosiidae]
- Myra subcarinata, Morris and Collins 1991 [Leucosiidae]
- Myra trispinosa, Morris and Collins 1991 [Leucosiidae]
- Myra wenjii, Hu and Tao 1985 [Leucosiidae]
- Nanocassiope, Guinot 1967 [Xanthidae]
- Nanocassiope alcocki, Rathbun 1902 [Xanthidae]
- Nanomaja, Muller and Collins 1991 [Epialtinae]
- Nanomaja simplex, Muller and Collins 1991 [Nanomaja]
- Nanoplax, Guinot 1967 [Pseudorhombilidae]
- Nanoplax xanthiformis, A. Milne-Edwards 1880 [Pseudorhombilidae]
- Necora, Holthuis 1987 [Macropipidae]
- Necora puber, Linnaeus 1767 [Macropipidae]
- Necrocarcinus angelicus, Fraaije 2002 [Necrocarcinidae]
- Necrocarcinus avicularis, Fritsch and Kafka 1887 [Necrocarcinidae]
- Necrocarcinus bispinosus, Segerberg 1900 [Necrocarcinidae]
- Necrocarcinus bodrakensis, Levitski 1974 [Necrocarcinidae]
- Necrocarcinus carinatus, R. Feldmann et al. 1993 [Necrocarcinidae]
- Necrocarcinus davisi, Bishop 1985 [Necrocarcinidae]
- Necrocarcinus inornatus, Breton and Collins 2010 [Necrocarcinidae]
- Necrocarcinus insignis, Segerberg 1900 [Necrocarcinidae]
- Necrocarcinus labeschei, Eudes-Deslongchamps 1835 [Necrocarcinidae]
- Necrocarcinus olsonorum, Bishop and Williams 1991 [Necrocarcinidae]
- Necrocarcinus olssoni, Rathbun 1937 [Necrocarcinidae]
- Necrocarcinus ornatissimus, Forir 1887 [Necrocarcinidae]
- Necrocarcinus perlatus, Fritsch and Kafka 1887 [Necrocarcinidae]
- Necrocarcinus pierrensis, Rathbun 1917 [Necrocarcinidae]
- Necrocarcinus rathbunae, Roberts 1962 [Necrocarcinidae]
- Necrocarcinus senonensis, Schluter 1868 [Necrocarcinidae]
- Necrocarcinus tauricus, Ilyin and Alekseev 1998 [Necrocarcinidae]
- Necrocarcinus undecimtuberculatus, Takeda and Fujiyama 1983 [Necrocarcinidae]
- Necrocarcinus woodwardi, Bell 1863 [Necrocarcinidae]
- Necrocarcinus wrighti, R. Feldmann et al. 1993 [Necrocarcinidae]
- Necronectes batalleri, Via 1932 [Portunidae]
- Necronectes beaumonti, A. Milne-Edwards 1864 [Portunidae]
- Necronectes catalaunicus, Via 1941 [Portunidae]
- Necronectes iranensis, Toraby and Yazdi 2002 [Portunidae]
- Necronectes nodosus, C. Schweitzer and R. Feldmann 2002 [Portunidae]
- Necronectes proavitus, Rathbun 1918 [Portunidae]
- Necronectes schafferi, Glaessner 1928 [Portunidae]
- Necronectes summus, Collins and Donovan 1995 [Portunidae]
- Necronectes vidalianus, A. Milne-Edwards 1881 [Portunidae]
- Necronectinae, subfamily, Glaessner 1928 [Portunidae]
- Necronectinae drydeni, Rathbun 1935 [Coptoclavidae]
- Nematocarcinidae, family, Smith 1884 [Decapoda]
- Nematocarcinoidea, superfamily, Smith 1884 [Decapoda]
- Nemausa, A. Milne-Edwards 1875 [Majidae]
- Nemausa acuticornis, Stimpson 1870 [Majidae]
- Neocallichirus allegranzii, Beschin 2005 [Callianassidae]
- Neocallichirus bona, Imaizumi 1959 [Callianassidae]
- Neocallichirus borensis, Beschin 2006 [Callianassidae]
- Neocallichirus dijki, Martin 1883 [Callianassidae]
- Neocallichirus fortisi, Beschin 2002 [Callianassidae]
- Neocallichirus hattai, Karasawa and Nakagawa 2010 [Callianassidae]
- Neocallichirus nishikawai, Karasawa 1993 [Callianassidae]
- Neocallichirus okamotoi, Karasawa 1993 [Callianassidae]
- Neocallichirus peraensis, Collins 1996 [Callianassidae]
- Neocallichirus rodfeldmanni, Hyzny et al. 2003 [Callianassidae]
- Neocallichirus sakiae, Karasawa and Fudouji 2000 [Callianassidae]
- Neocallichirus vaughani, M. J. Rathbun 1918 [Callianassidae]
- Neocallichirus wellsi, C. Schweitzer et al. 2004 [Callianassidae]
- Neodorippe, Serene and Romimohtarto 1969 [Dorippidae]
- Neodorippe carpathica, Forster 1979 [Dorippidae]
- Neoliomera, Odhner 1925 [Xanthidae]
- Neoliomera insularis, Adams and White 1849 [Xanthidae]
- Neoliomera intermedia, Odhner 1925 [Xanthidae]
- Neoliomera kuohwai, Hu 1981 [Xanthidae]
- Neoliomera paleogenica, Beschin et al. 2007 [Xanthidae]
- Neoliomera pubescens, H. Milne-Edwards 1834 [Xanthidae]
- Neoliomera richteroides, Sakai 1969 [Xanthidae]
- Neomeria, Hu and Tao 1996 [Xanthidae]
- Neomeria lelingae, Hu 1981 [Xanthidae]
- Neosarmatium, Serene and Soh 1970 [Sesarmidae]
- Neosarmatium smithi, H. Milne-Edwards 1853 [Sesarmidae]
- Neotrypaea, Manning and Felder 1991 [Callianassidae]
- Neotrypaea gigas, Dana 1852 [Callianassidae]
- Neozanthopsis achalzicus, Bittner 1882 [Zanthopsidae]
- Neozanthopsis bruckmanni, Von Meyer 1862 [Zanthopsidae]
- Neozanthopsis rathbunae, Stenzel 1934 [Zanthopsidae]
- Neozanthopsis sonthofenensis, Von Meyer 1862 [Zanthopsidae]
- Nephrops americanus, Rathbun 1935 [Nephropidae]
- Nephrops geoffroyi, Robineae-Desvoidy 1849 [Nephropidae]
- Nephrops kvistgaardae, Fraaije et al. 2005 [Nephropidae]
- Nephrops naoensis, Rathbun 1920 [Nephropidae]
- Nephrops reedi, Carter 1898 [Nephropidae]
- Nephropsis, Wood Mason 1873 [Nephropidae]
- Nephropsis stewarti, Wood Mason 1873 [Nephropidae]
- Neptocarcinus millenarus, Lorenthey 1898 [Portunidae]
- Nipponopon, Karasawa et al. 2006 [Prosopidae]
- Nipponopon hasegawai, Karasawa et al. 2006 [Prosopidae]
- Nitotacarcinus antipodes, C. E. Schweitzer et al. 2010 [Tumidocarcinidae]
- Nitotacarcinus bituberculatus, Collins and Jakobsen 2003 [Tumidocarcinidae]
- Nitotacarcinus canadensis, C. Schweitzer et al. 2009 [Tumidocarcinidae]
- Nobilum, Serene and Rohmimohtarto 1969 [Dorippidae]
- Nobilum wenchii, Hu and Tao 1996 [Dorippidae]
- Noetlingicarcinus, Karasawa 1928 [Basinotopidae]
- Noetlingicarcinus claudiopolitana, Bittner 1893 [Basinotopidae]
- Noetlingicarcinus succini, Noetling 1885 [Basinotopidae]
- Noetlingicarcinus veronensis, Bittner 1886 [Basinotopidae]
- Nogarolia, Beschin et al. 1994 [Xanthidae]
- Nogarolia mirabilis, Beschin et al. 1994 [Xanthidae]
- Notiodromia, C. Schweitzer and R. Felmann 2010 [Homolodromiidae]
- Notiodromia australis, Feldmann et al. 1993 [Homolodromiidae]
- Notiodromia novaezelandica, Feldmann 1993 [Homolodromiidae]
- Notocarcinus, C. Schweitzer and R. Feldmann 2000 [Cancridae]
- Notocarcinus sulcatus, C. Schweitzer and R. Feldmann 2000 [Cancridae]
- Notomithrax allani, Feldmann and Maxwell 1990 [Notomithrax]
- Notomithrax angustifrons, Jenkins 1985 [Notomithrax]
- Notopocorystes beyrichi, Bittner 1875 [Palaeocorystidae]
- Notopocorystes bituberculatus, Secretan 1964 [Palaeocorystidae]
- Notopocorystes callianassarum, Fritsch and Kafka 1887 [Palaeocorystidae]
- Notopocorystes exiguus, Glaessner 1980 [Palaeocorystidae]
- Notopocorystes fritschi, Glaessner 1929 [Palaeocorystidae]
- Notopocorystes japonicus, Jimbo 1894 [Palaeocorystidae]
- Notopocorystes normani, Bell 1863 [Palaeocorystidae]
- Notopocorystes stokesii, Mantell 1844 [Palaeocorystidae]
- Notopocorystes xizangensis, Wang 1981 [Palaeocorystidae]
- Notopodinae, subfamily, Serene and Umali 1972 [Palaeocorystidae]
- Notopoides exiguus, Beschin et al. 1988 [Palaeocorystidae]
- Notopoides pflugervillensis, Beikirch and R. Feldmann 1980 [Palaeocorystidae]
- Notopoides verbeeki, Bohm 1922 [Palaeocorystidae]
- Notopus beyrichi, Bittner 1875 [Palaeocorystidae]
- Notopus dorsipes, Linnaeus 1758 [Palaeocorystidae]
- Notopus minutus, Vega and Cosma 2001 [Palaeocorystidae]
- Notosceles serratifrons, Henderson 1893 [Palaeocorystidae]
- Nucia baripadensis, Bachmayer and Mohanti 1973 [Leucosiidae]
- Nucia borneoensis, Morris and Collins 1991 [Leucosiidae]
- Nucia calculoides, Morris and Collins 1991 [Leucosiidae]
- Nucia coxi, Morris and Collins 1991 [Leucosiidae]
- Nucia fennemai, Bohm 1922 [Leucosiidae]
- Nucia platyspinosa, Collins 2003 [Leucosiidae]
- Nucia speciosa, Dana 1852 [Leucosiidae]
- Nucilobus bericus, De Angeli and Beschin 2004 [Leucosiidae]
- Nucilobus symmetricus, Morris and Collins 1991 [Leucosiidae]
- Oakucudae, Bouvier 1898 [Decapoda]
- Ocalina haldixoni, Collins and Donovan 2006 [Carpiliidae]
- Ocalina straeleni, Remy 1954 [Carpiliidae]
- Ocalina sublevis, Collins and Donovan 2005 [Carpiliidae]
- Ocypode africana, De Man 1881 [Ocypodidae]
- Ocypode cursor, Linnaeus 1758 [Ocypodidae]
- Ocypode italica, Garassino et al. 2010 [Ocypodidae]
- Ocypode quadrata, Fabricius 1787 [Ocypodidae]
- Ocypodinae, subfamily, Rafinesque 1815 [Ocypodidae]
- Odontochelion, Garassino 1994 [Decapoda]
- Odontochelion cretaceum, Roger 1946 [Decapoda]
- Oedisoma ambiguum, Bell 1858 [Decapoda]
- Ogyrididae, family, Holthuis 1955 [Decapoda]
- Olinaecaris carinatus, Van Straelen 1924 [Decapoda]
- Ommatocarcinus sankuei, Hu and Tao 2004 [Goneplacidae]
- Ommatocarcinus taiwanicus, Hu and Tao 1996 [Goneplacidae]
- Oncopareia belgicus, Forir 1887 [Nephropidae]
- Oncopareia biseralis, Fritsch and Kafka 1887 [Nephropidae]
- Oncopareia coesfeldiensis, Schluter 1862 [Nephropidae]
- Oncopareia esocinus, Fritsch and Kafka 1887 [Nephropidae]
- Oncopareia inaequidens, Pelseneer 1886 [Nephropidae]
- Oncopareia klintebjergensis, Jakobsen and Collins 1979 [Nephropidae]
- Oncopareia lunatus, Fritsch and Kafka 1887 [Nephropidae]
- Oncopareia macrodactylus, Schluter 1862 [Nephropidae]
- Oncopareia numcki, Pelseneer 1886 [Nephropidae]
- Oncopareia parvulus, Fritsch and Kafka 1887 [Nephropidae]
- Oncopareia pectiniformis, Bohm 1891 [Nephropidae]
- Oncopareia sendenhorstensis, Schluter 1862 [Nephropidae]
- Oncopareia texanus, Rathbun 1935 [Nephropidae]
- Oonoton, Glaessner 1980 [unclassified genus]
- Oonoton woodsi, Glaessner 1980 [Oonoton]
- Ophthalmoplax brasiliana, Maury 1930 [Retroplumidae]
- Ophthalmoplax minimus, Osso-Morales et al. 2010 [Retroplumidae]
- Ophthalmoplax spinosus, R. Feldmann 1999 [Retroplumidae]
- Ophthalmoplax triambonatus, R. Feldmann and Villamil 2002 [Retroplumidae]
- Oplophoridae, family, Dana 1852 [Decapoda]
- Oplophoroidea, superfamily, Dana 1852 [Decapoda]
- Oplophorus marcki, Schluter 1868 [Oplophoridae]
- Oplophorus rosselli, Via 1971 [Oplophoridae]
- Oplophorus syriacus, Roger 1946 [Oplophoridae]
- Orbitoplax aldersoni, Squires 1980 [Euryplacidae]
- Orbitoplax plafkeri, Tucker and R. Feldmann 1990 [Euryplacidae]
- Orbitoplax tuckerae, C. Schweitzer 2000 [Euryplacidae]
- Oregoniidae, family, Garth 1958 [Decapoda]
- Orhomalus arabicus, Etallon 1861 [Paguridae]
- Orhomalus astartinus, Etallon 1861 [Paguridae]
- Orhomalus corallinus, Etallon 1861 [Paguridae]
- Orhomalus deformis, Oppel 1862 [Paguridae]
- Orhomalus deslongchampsi, Hee 1924 [Paguridae]
- Orhomalus jaccardi, Tribolet 1873 [Paguridae]
- Orhomalus macrochirus, Etallon 1861 [Paguridae]
- Orhomalus magnificus, Cronier and Courville 2004 [Paguridae]
- Orhomalus medericki, Cronier and Bouriscot 2009 [Paguridae]
- Orhomalus oppeli, Etallon 1861 [Paguridae]
- Orhomalus oxfordensis, Hee 1924 [Paguridae]
- Orhomalus pidauceti, Etallon 1861 [Paguridae]
- Orhomalus portlandicus, Etallon 1861 [Paguridae]
- Orhomalus rotulensis, De Gregorio 1884 [Paguridae]
- Orhomalus thierachensis, Fischer 1969 [Paguridae]
- Orhomalus tombecki, Tribolet 1875 [Paguridae]
- Orhomalus verrucosus, Etallon 1861 [Paguridae]
- Orhomalus virgulinus, Etallon 1861 [Paguridae]
- Orithopsis bonneyi, Carter 1872 [Orithopsidae]
- Orithyiidae, family, Dana 1852 [Decapoda]
- Orthakrolophos, C. Schweitzer and R. Feldmann 2001 [Chasmocarcinidae]
- Orthakrolophos bartonensis, Quayle and Collins 1981 [Chasmocarcinidae]
- Orthakrolophos bittneri, Morris and Collins 1991 [Chasmocarcinidae]
- Orthakrolophos depressus, Quayle and Collins 1981 [Chasmocarcinidae]
- Osachila berica, De Angeli and Beschin 1999 [Aethridae]
- Osachila tiechi, Studer 1898 [Aethridae]
- Ovalipes formosanus, Hu and Tao 1996 [Carcinidae]
- Ovalipes punctatus, De Haan 1833 [Carcinidae]
- Ovamene, Muller and Collins 1991 [Decapoda]
- Ovamene franciae, Muller and Collins 1991 [Decapoda]
- Ovocarcinus, Muller and Collins 1991 [Decapoda]
- Ovocarcinus elongatus, Muller and Collins 1991 [Decapoda]
- Ozius collinsi, Karasawa 1992 [Oziidae]
- Pachycheles, Stimpson 1858 [Porcellanidae]
- Pachycheles dorsosulcatus, Beschin et al. 2007 [Porcellanidae]
- Pachycheles stevensii, Stimpson 1858 [Porcellanidae]
- Pachygrapsus hungaricus, Muller 1974 [Grapsidae]
- Pacifastacus, Bott 1950 [Decapoda]
- Pacifastacus chenoderma, Cope 1871 [Decapoda]
- Paguristes baldoensis, Garassino et al. 2009 [Diogenidae]
- Paguristes cserhatensis, Muller 1984 [Diogenidae]
- Paguristes extentus, Beschin et al. 2007 [Diogenidae]
- Paguristes florae, Collins 1995 [Diogenidae]
- Paguristes hokoensis, C. Schweitzer and R. Feldmann 2001 [Diogenidae]
- Paguristes lineatuberculatus, Beschin 2006 [Diogenidae]
- Paguristes santamartaensis, Feldmann et al. 1993 [Diogenidae]
- Paguristes wheeleri, Blow and Manning 1996 [Diogenidae]
- Paguristes whitteni, Bishop 1983 [Diogenidae]
- Pagurus alatoides, Philippe and Secretan 1971 [Paguridae]
- Pagurus arrosor, Herbst 1974 [Paguridae]
- Pagurus avellanedae, Via 1951 [Paguridae]
- Pagurus concavus, Muller 1978 [Paguridae]
- Pagurus constans, Stimpson 1858 [Paguridae]
- Pagurus dubius, Noetling 1885 [Paguridae]
- Pagurus granosimanus, Stimpson 1862 [Paguridae]
- Pagurus langei, Collins and Jakobsen 2003 [Paguridae]
- Pagurus malloryi, C. Schweitzer and R. Feldmann 2001 [Paguridae]
- Pagurus manzonii, Ristori 1888 [Paguridae]
- Pagurus marceti, Via 1959 [Paguridae]
- Pagurus marini, Via 1959 [Paguridae]
- Pagurus megalops, Stimpson 1858 [Paguridae]
- Pagurus pectinatus, Stimpson 1858 [Paguridae]
- Pagurus rakosensis, Muller 1978 [Paguridae]
- Pagurus similis, Ortmann 1892 [Paguridae]
- Pagurus squamosus, Ristori 1886 [Paguridae]
- Pagurus tuberculosus, Harvey 1998 [Paguridae]
- Pagurus turcus, Muller 1984 [Paguridae]
- Paki, Karasawa and Hayakawa 2000 [Micheleidae]
- Paki rurkonsimpu, Karasawa and Hayakawa 2000 [Micheleidae]
- Pakicarcinus, C. Schweitzer et al. 2004 [Panopeidae]
- Pakicarcinus orientalis, Collins and Morris 1978 [Panopeidae]
- Pakicarcinus whittenesis, Glaessner 1980 [Panopeidae]
- Palaeastacus cenomaniensis, Hee 1924 [Erymidae]
- Palaeastacus decoratus, Frentzen 1937 [Erymidae]
- Palaeastacus deslongchampsi, Van Straelen 1924 [Erymidae]
- Palaeastacus dixoni, Bell 1850 [Erymidae]
- Palaeastacus edwardsi, Etallon 1861 [Erymidae]
- Palaeastacus falsani, Dumortier 1867 [Erymidae]
- Palaeastacus foersteri, Taylor 1979 [Erymidae]
- Palaeastacus fuciformis, Schlotheim 1822 [Erymidae]
- Palaeastacus macrodactylus, Bell 1850 [Erymidae]
- Palaeastacus ornatus, Whiteaves 1887 [Erymidae]
- Palaeastacus plavensis, Geinitz 1875 [Erymidae]
- Palaeastacus poeschli, Schweigert and Roper 2001 [Erymidae]
- Palaeastacus rothgaenegerae, Schweigert and Roper 2001 [Erymidae]
- Palaeastacus scaber, Bell 1863 [Erymidae]
- Palaeastacus spinosus, Etallon 1861 [Erymidae]
- Palaeastacus sussexiensis, Mantell 1833 [Erymidae]
- Palaeastacus terraereginae, Etheridge 1914 [Erymidae]
- Palaeastacus triglyptus, Stenzel 1945 [Erymidae]
- Palaeastacus trisulcatus, Schweitzer and Feldmann 2001 [Erymidae]
- Palaeastacus walkeri, Whitfield 1883 [Erymidae]
- Palaemon bahiaensis, Beurlen 1950 [Palaemonidae]
- Palaemon exul, Frotscj 1872 [Palaemonidae]
- Palaemon fabricii, Michelotti 1861 [Palaemonidae]
- Palaemon mortuus, Smirnov 1929 [Palaemonidae]
- Palaemon vesolensis, Bravi 1999 [Palaemonidae]
- Palaemonoidea, superfamily, Rafinesque 1815 [Decapoda]
- Palaeocambarus, Taylor et al. 1999 [Astacidae]
- Palaeocambarus licenti, Van Straelen 1928 [Astacidae]
- Palaeocarpilius aquitanicus, A. Milne-Edwards 1862 [Carpiliidae]
- Palaeocarpilius ignotus, A. Milne-Edwards 1862 [Carpiliidae]
- Palaeocarpilius intermedius, Stubblefield 1927 [Carpiliidae]
- Palaeocarpilius laevis, Imaizumi 1939 [Carpiliidae]
- Palaeocarpilius macrocheilus, Desmarest 1822 [Carpiliidae]
- Palaeocarpilius rugifer, Stoliczka 1871 [Carpiliidae]
- Palaeocarpilius valrovinensis, De Gregorio 1895 [Carpiliidae]
- Palaeoechinastacus, Martin 2008 [Parastacidae]
- Palaeoechinastacus australianus, Martin 2008 [Parastacidae]
- Palaeograpsus inflatus, Bittner 1875 [Panopeidae]
- Palaeomunida defecta, Lorenthey 1902 [Galatheidae]
- Palaeomunida moesica, Muiu and Badaluta 1971 [Galatheidae]
- Palaeomunida multicristata, De Angeli and Garassino 2002 [Galatheidae]
- Palaeomunidopsis moutieri, Van Straelen 1923 [Galatheidae]
- Palaeomyra bispinosa, A. Milne-Edwards 1861 [Leucosiidae]
- Palaeomyra globulosa, Muller 1976 [Leucosiidae]
- Palaeopagurus acutus, Cronier and Courville 2004 [Paguridae]
- Palaeopagurus cretaceous, Mertin 1941 [Paguridae]
- Palaeopagurus deslongchampsi, Van Straelen 1924 [Paguridae]
- Palaeopagurus guilleaumei, Van Straelen 1924 [Paguridae]
- Palaeopagurus jurensis, Etallon 1861 [Paguridae]
- Palaeopagurus kellowiensis, Etallon 1861 [Paguridae]
- Palaeopagurus laevis, Van Straelen 1924 [Paguridae]
- Palaeopagurus morinicus, Sauvage 1891 [Paguridae]
- Palaeopagurus neraudeaui, Cronier and Courville 2004 [Paguridae]
- Palaeopagurus pilsbryi, Roberts 1962 [Paguridae]
- Palaeopagurus quadratus, Van Straelen 1924 [Paguridae]
- Palaeopagurus rumignyensis, Fischer 1969 [Paguridae]
- Palaeopagurus serialis, Carter 1886 [Paguridae]
- Palaeopagurus spinosus, Van Straelen 1924 [Paguridae]
- Palaeopagurus tuberculatus, Van Straelen 1924 [Paguridae]
- Palaeopalaemon newberryi, Whitfield 1880 [Palaeopalaemonidae]
- Palaeopalaemonidae, family, Brooks 1962 [Palaeopalaemonoidea]
- Palaeopalaemonoidea, superfamily, Brooks 1962 [Palaeopalaemonida]
- Palaeopalinurus glaessneri, Bachmayer 1954 [Palinuridae]
- Palaeopentacheles roettenbacheri, Munster 1839 [Palaeopentachelidae]
- Palaeopentacheles starri, C. Schweitzer and R. Feldmann 2001 [Palaeopentachelidae]
- Palaeopentachelidae, family, Ahyong 2009 [Decapoda]
- Palaeophoberus portlandicus, Roger and de Lapparent 1945 [Stenochiridae]
- Palaeophoberus suevicus, Quenstedt 1867 [Stenochiridae]
- Palaeopinnixa alontensis, De Angeli et al. 2010 [Palaeopinnixa]
- Palaeopinnixa eocenica, Woods 1922 [Palaeopinnixa]
- Palaeopinnixa granulosa, C. Schweitzer and R. Feldmann 2002 [Palaeopinnixa]
- Palaeopinnixa heckeri, Birshtein 1956 [Palaeopinnixa]
- Palaeopinnixa intermedia, Collins and Morris 1976 [Palaeopinnixa]
- Palaeopinnixa mytilicola, Via 1966 [Palaeopinnixa]
- Palaeopinnixa perornata, Collins and Morris 1976 [Palaeopinnixa]
- Palaeopinnixa prima, Rathbun 1918 [Palaeopinnixa]
- Palaeopinnixa rocaensis, R. Feldmann and Casadio 1995 [Palaeopinnixa]
- Palaeopinnixa rotunda, C. Schweitzer and R. Feldmann 2001 [Palaeopinnixa]
- Palaeopsopheticus, Hu and Tao 1996 [Euryplacidae]
- Palaeopsopheticus shujenae, Hu and Tao 1996 [Euryplacidae]
- Palaeotrichia, Guinot 1976 [Atelecyclidae]
- Palaeotrichia laevis, Noetling 1885 [Atelecyclidae]
- Palaeotrichia multispinata, Noetling 1885 [Atelecyclidae]
- Palaeoxantho, Bishop 1986 [Palaeoxanthopsidae]
- Palaeoxantho libertiensis, Bishop 1986 [Palaeoxanthopsidae]
- Palaeoxanthops, Karasawa 1993 [Xanthidae]
- Palaeoxanthops minutus, Karasawa 1993 [Xanthidae]
- Palaeoxanthops okumurai, Karasawa 1993 [Xanthidae]
- Palaeoxanthopsis cretacea, Rathbun 1902 [Palaeoxanthopsidae]
- Palaeoxanthopsis meyapaquensis, Vega and Feldmann 2001 [Palaeoxanthopsidae]
- Paleocambararus, Taylor et al. 1999 [Cambaridae]
- Paleomattea, Maisey and De Carvalho 1995 [Decapoda]
- Paleomattea deliciosa, Maisey and De Carvalho 1995 [Decapoda]
- Palibacus praecursor, Dames 1886 [Scyllaridae]
- Palicidae, family, Bouvier 1898 [Decapoda]
- Palicoidea, superfamily, Bouvier 1898 [Decapoda]
- Palicus, Philippi [Palicidae]
- Palicus hungaricus, Muller 2006 [Palicidae]
- Palinurina longipes, Munster 1839 [Palinuridae]
- Palinurina tenera, Oppel 1862 [Palinuridae]
- Palmyria palmyrensis, Rathbun 1923 [Domeciidae]
- Pandalidae, family, Haworth 1825 [unclassified family]
- Pandaloidea, superfamily, Haworth 1825 [Decapoda]
- Pandalus, Leach 1814 [Pandalidae]
- Pandalus orientalis, Niino 1951 [Pandalidae]
- Panopeidae orientalis, Collins and Morris 1978 [Panopeidae]
- Panopeinae, subfamily, Ortmann 1893 [Panopeidae]
- Panopeus baldwini, Kooser and Orr 1973 [Panopeidae]
- Panopeus bessmanni, Collins and Jakobsen 2003 [Panopeidae]
- Panopeus bolcensis, Secretan 1975 [Panopeidae]
- Panopeus capanemaensis, Martins-Neto 2001 [Panopeidae]
- Panopeus granulineatus, Muller and Collins 1991 [Panopeidae]
- Panopeus herbstii, M. Edwards 1834 [Panopeidae]
- Panopeus incisus, Beschin et al. 2007 [Panopeidae]
- Panopeus jerseyensis, Roberts 1986 [Panopeidae]
- Panopeus nanus, Portell and Collins 2004 [Panopeidae]
- Panopeus prosakrolophos, Schweitzer 2000 [Panopeidae]
- Panopeus rugosus, A. Milne-Edwards 1880 [Panopeidae]
- Panopeus torus, C. Schweitzer 2000 [Panopeidae]
- Panopeus veintensis, Vega 2008 [Panopeidae]
- Panopeus viai, Muller 1993 [Panopeidae]
- Panopeus wronai, Muller 1984 [Panopeidae]
- Panticarcinus, Collins and Saward 2006 [Epialtinae]
- Panticarcinus maylandiensis, Collins and Saward 2006 [Panticarcinus]
- Panulirus, White 1847 [Palinuridae]
- Panulirus destombesi, Garrassino and Breton 2010 [Palinuridae]
- Paphirus latidactylus, Muller and Collins 1991 [Veneridae]
- Paracleistostoma, De Man 1895 [Camptandriidae]
- Paracleistostoma miocaenica, Muller 1998 [Camptandriidae]
- Paraclythia boetticheri, Mertin 1941 [Nephropidae]
- Paraclythia nephropica, Fritsch and Kafka 1887 [Nephropidae]
- Paraclythia nephropiformis, Schluter 1862 [Nephropidae]
- Paraclythia valashensis, McCobb and Hairapetian 2009 [Nephropidae]
- Paraclythia westfalica, Merin 1941 [Nephropidae]
- Paraclytiopsis hungaricus, Oravec 1962 [Clytiopsidae]
- Paracorallicarcinus arcanus, Tessier 1999 [Litocheiridae]
- Paractaea, Guinot 1969 [Xanthidae]
- Paractaea philippinensis, Ward 1942 [Xanthidae]
- Paracyclois, Miers 1886 [Calappidae]
- Paracyclois grandispinis, Etheridge and McCullock 1916 [Calappidae]
- Paradorippe, Serene and Romimohtarto 1969 [Dorippidae]
- Paradorippe granulata, De Haan 1839 [Dorippidae]
- Paradosilissopsa, C. Schweitzer et al. 2010 [Decapoda]
- Paradosilissopsa transiens, Fritsch and Kafka 1887 [Decapoda]
- Paraeuphylax, Varela and Schweitzer 2010 [Portunidae]
- Paraeuphylax cubaensis, Varela and C. Schweitzer 2010 [Portunidae]
- Paragalathea africana, Garassino et al. 2008 [Galatheidae]
- Paragalathea miyakoensis, Takeda and Fujiyama 1983 [Galatheidae]
- Paragalathea multisquamata, Via 1981 [Galatheidae]
- Paragalathea neocomiensis, Van Straelen 1936 [Galatheidae]
- Paragalathea ornatissima, Patrulius 1966 [Galatheidae]
- Paragalathea ruizi, Van Straelen 1940 [Galatheidae]
- Paragalathea straeleni, Ruiz de Gaona 1943 [Galatheidae]
- Paragalathea striata, Remes 1895 [Galatheidae]
- Paragalathea substriata, Blaschke 1911 [Galatheidae]
- Paragalathea ubaghsi, Pleseneer 1886 [Galatheidae]
- Paragalathea verrucosa, Moericke 1889 [Galatheidae]
- Paralitogaster durlachensis, Forster 1967 [Litogastroidae]
- Paralitogaster limicola, Konig 1920 [Litogastroidae]
- Paranecrocarcinus digitatus, Wright and Collins 1972 [Necrocarcinidae]
- Paranecrocarcinus foesteri, Wright and Collins 1972 [Necrocarcinidae]
- Paranecrocarcinus hexagonalis, Van Straelen 1936 [Necrocarcinidae]
- Paranecrocarcinus kennedyi, Wright 1997 [Necrocarcinidae]
- Paranecrocarcinus libanoticus, Forster 1968 [Necrocarcinidae]
- Paranecrocarcinus milbournei, Collins 2010 [Necrocarcinidae]
- Paranecrocarcinus mozambiquensis, Forster 1970 [Necrocarcinidae]
- Paranecrocarcinus pusillus, Breton and Collins 2010 [Necrocarcinidae]
- Paranecrocarcinus vanbirgeleni, Fraaije 2002 [Necrocarcinidae]
- Paranephrops, White 1842 [unclassified genus]
- Paranephrops fordycei, Feldmann 1994 [Paranephrops]
- Paranursia, Serene and Soh 1976 [Leucosiidae]
- Paranursia acharyai, Bachmayer and Mohanti 1973 [Leucosiidae]
- Paraocalina, Beschin et al. 2007 [Carpiliidae]
- Paraocalina brodkorbi, Lewis and Ross 1965 [Carpiliidae]
- Paraocalina multilobata, Beschin et al. 2007 [Carpiliidae]
- Parapaguridae, family, Smith 1882 [Decapoda]
- Parapaguristes, Bishop 1986 [Diogenidae]
- Parapaguristes tuberculatus, Bishop 1986 [Diogenidae]
- Parapanopinae, subfamily, Stevcic 2005 [Galenidae]
- Parapirimela angolensis, Van Straelen 1937 [Pirimelidae]
- Parastacidae, family, Huxley 1879 [Decapoda]
- Parastacoidea, superfamily, Huxley 1879 [Decapoda]
- Paratetralia, Beschin et al. 2007 [Trapeziidae]
- Paratetralia convexa, Beschin et al. 2007 [Trapeziidae]
- Parathranites, Miers 1886 [Macropipidae]
- Parathranites shibatai, Karasawa 1990 [Macropipidae]
- Paratumidocarcinus marajoarus, Martins-Neto 2001 [Tumidocarcinidae]
- Paraxanthias, Odhner 1925 [Xanthidae]
- Paraxanthias fujiyamai, Karasawa 1993 [Xanthidae]
- Paraxanthosia, Muller and Collins 1991 [Decapoda]
- Paraxanthosia budensis, Muller and Collins 1991 [Decapoda]
- Paraxanthosia tuberculata, Beschin 2005 [Decapoda]
- Pariphiculus decemtuberculatus, Collins 2003 [Iphiculidae]
- Pariphiculus gselli, Beets 1950 [Iphiculidae]
- Pariphiculus inconditus, Karasawa 1993 [Iphiculidae]
- Pariphiculus multituberculatus, Collins 2003 [Iphiculidae]
- Pariphiculus papillosus, Morris and Collins 1991 [Iphiculidae]
- Pariphiculus verrucosus, Morris and Collins 1991 [Iphiculidae]
- Paromola, Wood-Mason 1891 [Homolidae]
- Paromola vetula, Crawford 2008 [Homolidae]
- Paromolopsis, Wood-Mason 1891 [Homolidae]
- Paromolopsis piersoni, Schweitzer et al. 2004 [Homolidae]
- Paronacarcinus, Beschin et al. 2009 [Tumidocarcinidae]
- Paronacarcinus spinosus, Beschin et al. 2009 [Tumidocarcinidae]
- Parribacus cristatus, Forster 1984 [Scyllaridae]
- Parribacus japonicus, Holthuis 1960 [Scyllaridae]
- Parthenope bachmayeri, Forster and Mundlos 1982 [Parthenopidae]
- Parthenope bittneri, Noetlng 1885 [Parthenopidae]
- Parthenope clypeformis, Collins 2003 [Parthenopidae]
- Parthenope jugular, Collins 2003 [Parthenopidae]
- Parthenope neocomiensis, Robineau-Desvoidy 1849 [Parthenopidae]
- Parthenope nummulitica, Bittner 1875 [Parthenopidae]
- Parthenope prisca, A. Milne-Edwards 1873 [Parthenopidae]
- Parthenope szaboi, Muller 1974 [Parthenopidae]
- Parthenope tetenyensis, Muller 1984 [Parthenopidae]
- Parthenope trituberculata, Beurlen 1958 [Parthenopidae]
- Parthenope venezuelensis, Van Straelen 1933 [Parthenopidae]
- Parthenopinae, subfamily, MacLeay 1838 [Parthenopidae]
- Parvocaris, Bravi and Garassino 1998 [Decapoda]
- Parvocaris samnitica, Bravi and Garassino 1998 [Decapoda]
- Pasiphaea, Savigny 1816 [Pasiphaeidae]
- Pasiphaea mortua, Smirnov 1929 [Pasiphaeidae]
- Pasiphaeoidea, superfamily, Dana 1852 [Decapoda]
- Pehuenchia, Rusconi 1948 [Callianassidae]
- Pehuenchia magna, Rusconi 1948 [Callianassidae]
- Pehuenchia tellecheai, Rusconi 1948 [Callianassidae]
- Pelaeus, Eydoux and Souleyet 1842 [Platyxanthidae]
- Pelaeus chauvinii, De Berville 1857 [Platyxanthidae]
- Pemphicidae, family, Van Straelen 1928 [Decapoda]
- Pemphix malladai, Via 1971 [Pemphicidae]
- Pemphix silesiacus, Assmann 1927 [Pemphicidae]
- Pemphix sueuree, Desmarest 1822 [Pemphicidae]
- Penaeus arambourgi, Roger 1946 [Decapoda]
- Penaeus barmerensis, Tiwari 1963 [Decapoda]
- Penaeus bolcensis, Secretan 1975 [Decapoda]
- Penaeus cornappensis, Garassino 1998 [Decapoda]
- Penaeus furensis, Garassino and Harper 2004 [Decapoda]
- Penaeus kapurdii, Prasad 1966 [Decapoda]
- Penaeus maddeni, R. M. Feldman et al. 1993 [Decapoda]
- Penaeus natator, Glaessner 1946 [Decapoda]
- Penaeus obtusus, Secretan 1975 [Decapoda]
- Penaeus smyrnacus, Van Straelen 1940 [Decapoda]
- Penaeus sorbinii, Beschin and Garassino 1999 [Decapoda]
- Penaeus spectabilis, Von der Marck 1863 [Decapoda]
- Penaeus tenuicauda, Von der Marck 1858 [Decapoda]
- Penaeus vanzii, Beschin and Garassino 1999 [Decapoda]
- Penaeus vernassensis, Garassino and Teruzzi 1995 [Decapoda]
- Penaeus wenasogensis, Rathbun 1926 [Decapoda]
- Periacanthus dallagoi, Beschin 2005 [Periacanthus]
- Periacanthus dallonii, Via 1959 [Periacanthus]
- Periacanthus horridus, Bittner 1875 [Periacanthus]
- Periacanthus ramosus, Artal and Castillo 2005 [Periacanthus]
- Persephona mediterranea, Herbst 1794 [Leucosiidae]
- Persephona niemeyeri, Blow 2003 [Leucosiidae]
- Persephona punctata, Linnaeus 1858 [Leucosiidae]
- Persephona rodesae, Blow 2003 [Leucosiidae]
- Petrochirus diogenes, Linnaeus 1758 [Diogenidae]
- Petrochirus mezi, Lorenthey 1907 [Diogenidae]
- Petrochirus poscolensis, Beschin 2006 [Diogenidae]
- Petrochirus priscus, Brocchi 1883 [Diogenidae]
- Petrolisthes bittneri, De Angeli and Garassino 2002 [Porcellanidae]
- Petrolisthes magnus, Muller 1984 [Porcellanidae]
- Petrolisthes miocaenicus, Karasawa 1993 [Porcellanidae]
- Petrolisthes myakkensis, Bishop and Portell 1989 [Porcellanidae]
- Petrolisthes striatissimus, Muller and Collins 1991 [Porcellanidae]
- Petrolisthes vicetinus, Beschin et al. 2001 [Porcellanidae]
- Phalangites pricus, Munster 1839 [Palinuridae]
- Philyra acutidens, Chen 1987 [Leucosiidae]
- Philyra alveola, Hu and Tao 2000 [Leucosiidae]
- Philyra collinsi, Karasawa 2010 [Leucosiidae]
- Philyra cranium, Desmarest 1822 [Leucosiidae]
- Philyra ferrica, Hu and Tao 1996 [Leucosiidae]
- Philyra hayasakai, Karasawa and Inoue 1992 [Leucosiidae]
- Philyra heterograna, Ortmann 1892 [Leucosiidae]
- Philyra miyamotoi, Karasawa and Kishimoto 1996 [Leucosiidae]
- Philyra nishimotoi, Karasawa 1989 [Leucosiidae]
- Philyra pisum, De Haan 1841 [Leucosiidae]
- Philyra plana, Karasawa 1989 [Leucosiidae]
- Philyra platycheir, De Haan 1841 [Leucosiidae]
- Philyra scabriuscula, Fabricius 1793 [Leucosiidae]
- Philyra shihcheni, Hu and Tao 1979 [Leucosiidae]
- Philyra syndactyla, Ortmann 1892 [Leucosiidae]
- Philyra tanakai, Karasawa 1993 [Leucosiidae]
- Philyra tridentata, Karasawa 1993 [Leucosiidae]
- Philyra trusanensis, Collins 2003 [Leucosiidae]
- Phlyctenodes dalpiazi, Fabiani 1911 [Xanthidae]
- Phlyctenodes irregularis, Ristori 1896 [Xanthidae]
- Phlyctenodes krenneri, Lorenthey 1897 [Xanthidae]
- Phlyctenodes multituberculatus, Beschin et al. 2007 [Xanthidae]
- Phlyctenodes nicolisi, Bittner 1884 [Xanthidae]
- Phlyctenodes pustulosus, A. Milne-Edwards 1862 [Xanthidae]
- Phlyctenodes steinmanni, Lorenthey 1902 [Xanthidae]
- Phlyctenodes tuberculosus, A. Milne-Edwards 1862 [Xanthidae]
- Phoenice, Garassino 2001 [Stenopodidae]
- Phoenice pasinii, Garassino 2001 [Stenopodidae]
- Phrynolambrus, Bittner 1893 [Parthenopidae]
- Phrynolambrus corallinus, Bittner 1893 [Parthenopidae]
- Phrynolambrus italicus, De Angeli and Beschin 2008 [Parthenopidae]
- Phrynolambrus pentagonus, Quayle and Collins 1981 [Parthenopidae]
- Phrynolambrus weinfurteri, Bachmayer 1953 [Parthenopidae]
- Phyllotymolinidae, family, Tavares 1998 [unclassified family]
- Physetocarididae, family, Chace 1940 [Decapoda]
- Physetocaridoidea, superfamily, Chace 1940 [Decapoda]
- Pilodius, Dana 1851 [Xanthidae]
- Pilodius granulatus, Stimpson 1859 [Xanthidae]
- Pilodius mediterraneus, Lorenthey 1898 [Xanthidae]
- Pilodius nigrocrinitus, Stimpson 1859 [Xanthidae]
- Pilodius parvus, Karasawa 1993 [Xanthidae]
- Pilodius pugil, Dana 1852 [Xanthidae]
- Pilodius vulgaris, Glaessner 1928 [Xanthidae]
- Pilumninae, subfamily, Samouelle 1819 [Pilumnidae]
- Pilumnoidea, superfamily, Samouelle 1819 [Decapoda]
- Pilumnoididae, family, Guinot and MacPherson 1987 [Decapoda]
- Pilumnoidoidea, superfamily, Guinot and MacPherson 1987 [Decapoda]
- Pilumnomimus, Muller and Collins 1991 [Decapoda]
- Pilumnomimus planidentatus, Muller and Collins 1991 [Decapoda]
- Pilumnopeus, A. Milne-Edwards 1867 [Pilumnidae]
- Pilumnopeus dilatatus, Muller 1993 [Pilumnidae]
- Pilumnopeus paratethyensis, Muller 1984 [Pilumnidae]
- Pilumnopeus tetenyensis, Muller 1984 [Pilumnidae]
- Pilumnus fookimensis, Collins 2003 [Pilumnidae]
- Pilumnus hirtellus, Linnaeus 1761 [Pilumnidae]
- Pilumnus mediterraneus, Lorenthey 1898 [Pilumnidae]
- Pilumnus olivellai, Muller 1993 [Pilumnidae]
- Pilumnus pannosus, Rathbun 1898 [Pilumnidae]
- Pilumnus ristorii, De Angeli 2009 [Pilumnidae]
- Pilumnus sayi, Rathbun 1897 [Pilumnidae]
- Pilumnus spinossimus, Rathbun 1898 [Pilumnidae]
- Pilumnus villosissimus, Rafinesque 1814 [Pilumnidae]
- Pinnacaris, Garassino and Teruzzi 1993 [Decapoda]
- Pinnacaris dentata, Garassino and Teruzzi 1993 [Decapoda]
- Pinnixa aequipunctata, Morris and Collins 1991 [Pinnotheridae]
- Pinnixa faba, Dana 1851 [Pinnotheridae]
- Pinnixa microgranulosa, Collins 2003 [Pinnotheridae]
- Pinnixa miocenica, Rathbun 1932 [Pinnotheridae]
- Pinnixa omega, Morris and Collins 1991 [Pinnotheridae]
- Pinnothereliinae, subfamily, Alcock 1900 [Pinnotheridae]
- Pinnotheres, Bosc 1802 [Pinnotheridae]
- Pinnotheres araucana, Philippi 1887 [Pinnotheridae]
- Pinnotheres elatus, A. Milne-Edwards 1873 [Pinnotheridae]
- Pinnotheres promaucanaus, Philippi 1887 [Pinnotheridae]
- Pinnotherinae, subfamily, De Haan 1833 [Pinnotheridae]
- Pinnotheroidea, superfamily, De Haan 1833 [Decapoda]
- Pirimela, Leach 1816 [Pirimelidae]
- Pirimela lorentheyi, Muller 1974 [Pirimelidae]
- Pirimelidae, family, Alcock 1899 [Decapoda]
- Pisa armata, Latreille 1803 [Epialtidae]
- Pisa oroszyi, Bachmayer 1953 [Epialtidae]
- Pisidia dorsosinuosa, De Angeli and Garassino 2002 [Porcellanidae]
- Pisidia kokayi, Muller 1974 [Porcellanidae]
- Pisidia viai, Muller 1984 [Porcellanidae]
- Pisinae, subfamily, Dana 1851 [Epialtidae]
- Pisoides, H. Milne-Edwards and Lucas 1843 [Epialtidae]
- Pisoides bidentatus, A. Milne-Edwards 1873 [Epialtidae]
- Pisoides ortmanni, Balss 1924 [Epialtidae]
- Pisomaja tuberculata, Lorenthey 1929 [Majidae]
- Pitho, Bell 1836 [Epialtidae]
- Pitho anisodon, Von Martens 1872 [Epialtidae]
- Pithonoton bourgeati, Van Straelen 1924 [Goniodromitidae]
- Pithonoton hypocritum, Etallon 1861 [Goniodromitidae]
- Pithonoton incisum, Van Straelen 1924 [Goniodromitidae]
- Pithonoton iyonofutanajima, Karasawa and Kato 2007 [Goniodromitidae]
- Pithonoton moutieri, Hee 1924 [Goniodromitidae]
- Pithonoton obtusum, Von Meyer 1860 [Goniodromitidae]
- Pithonoton rotundum, Beurlen 1925 [Goniodromitidae]
- Plagiophthalmous collinsi, R. Feldmann et al. 1993 [Goniodromitidae]
- Plagiophthalmous nitonensis, Wright and Wright 1950 [Goniodromitidae]
- Plagiophthalmous oviformis, Bell 1863 [Goniodromitidae]
- Plagusiidae, family, Dana 1851 [Decapoda]
- Planes prior, Smirnov 1929 [Grapsidae]
- Planobranchia, C. Schweitzer and R. Feldmann 2010 [Majinae]
- Planobranchia egyptensis, R. Feldmann et al. 2010 [Planobranchia]
- Planobranchia laevis, Lorenthey 1909 [Planobranchia]
- Planobranchia simplex, Remy 1959 [Planobranchia]
- Planoprosopon kashimaensis, Kato et al. 2010 [Longodromitidae]
- Planoprosopon quadratum, Schweigert and Koppka 2010 [Longodromitidae]
- Planoprosopon thiedeae, Schweigert and Koppka 2010 [Longodromitidae]
- Planoterginae, subfamily, Stevcic 2005 [unclassified subfamily]
- Platepistoma, Rathbun 1906 [Cancridae]
- Platepistoma imamurae, Imaizumi 1962 [Cancridae]
- Platepistoma kaedei, Karasawa 1992 [Cancridae]
- Platychela trauthi, Glaessner 1931 [Platychelidae]
- Platychelidae, family, Glaessner 1969 [Decapoda]
- Platypleon nevadensis, Van Straelen 1936 [Platychelidae]
- Platypodia, Bell 1836 [Xanthidae]
- Platypodia granulosa, Ruppell 1830 [Xanthidae]
- Pleolobites erinaceus, Remy 1960 [Macropipidae]
- Pleopteryx, Schweigert and Garassino 2004 [Pleopteryxidae]
- Pleopteryx kuempeli, Schweigert and Garassino 2004 [Pleopteryxidae]
- Pleopteryxidae, family, Schweigert and Garassino 2006 [Decapoda]
- Pleopteryxoidea, superfamily, Schweigert and Garassino 2004 [Decapoda]
- Plioaxius, Fraaije et al. 2010 [Axiidae]
- Plioaxius lineadactylus, Fraaije et al. 2010 [Axiidae]
- Pliopirimela, Van Bakel et al. 2003 [Pirimelidae]
- Pliopirimela deconincki, Van Bakel et al. 2003 [Pirimelidae]
- Pliosomatinae, subfamily, Stevcic 2005 [Epialtidae]
- Podocallichirus, Sakai 1999 [Callianassidae]
- Podocallichirus grandis, Karasawa and Goda 1996 [Callianassidae]
- Podocatactes, Ortmann 1893 [Atelecyclidae]
- Podocatactes hamifer, Ortmann 1893 [Atelecyclidae]
- Podocatactes ujiharai, Karasawa 1993 [Atelecyclidae]
- Podophthalminae, subfamily, Dana 1851 [Portunidae]
- Podophthalmus defrancei, Desmarest 1822 [Portunidae]
- Podophthalmus fusiformis, Morris and Collins 1991 [Portunidae]
- Podophthalmus taiwanicus, Hu and Tao 1985 [Portunidae]
- Polybiinae, subfamily, Paulson 1875 [Carcinidae]
- Polychelidae, family, Wood-Mason 1875 [Decapoda]
- Polycnemidium pustulosus, Reuss 1845 [Necrocarcinidae]
- Polydectinae, subfamily, Dana 1851 [Xanthidae]
- Polyonyx arcuatus, Muller and Collins 1991 [Decapoda]
- Ponotus, Karasawa and Ohara 2009 [Palaeocorystidae]
- Ponotus shirahamensis, Karasawa and Ohara 2009 [Palaeocorystidae]
- Porcellana antiqua, A. Milne-Edwards 1862 [Porcellanidae]
- Pororaria eocenica, Glaessner 1980 [Portunidae]
- Portufuria, Collins et al. 2005 [Macropipidae]
- Portufuria enigmatica, Collins et al. 2005 [Macropipidae]
- Portumnus tricarinatus, Lorenthey 1929 [Carcinidae]
- Portuninae, subfamily, Rafinesque 1815 [Portunidae]
- Portunites angustata, Collins et al. 1999 [Macropipidae]
- Portunites eocenica, Lorenthey 1929 [Macropipidae]
- Portunites hoepfneri, Moths 2005 [Macropipidae]
- Portunites incerta, Bell 1858 [Macropipidae]
- Portunites kattachiensis, Karasawa 1992 [Macropipidae]
- Portunites nodosus, C. Schweitzer and R. Feldmann 2000 [Macropipidae]
- Portunites rosenfeldi, De Angeli and Garassino 2006 [Macropipidae]
- Portunites stintoni, Quayle 1984 [Macropipidae]
- Portunites sylviae, Quayle and Collins 1981 [Macropipidae]
- Portunus alphonsei, Karasawa et al. 2008 [Portunidae]
- Portunus arcuatus, A. Milne-Edwards 1860 [Portunidae]
- Portunus brouveri, Van Straelen 1924 [Portunidae]
- Portunus catalanicus, Via 1941 [Portunidae]
- Portunus delgadoi, Fontannes 1884 [Portunidae]
- Portunus edwardsi, Sismonda 1861 [Portunidae]
- Portunus gallicus, A. Milne-Edwards 1873 [Portunidae]
- Portunus gibbesii, Stimpson 1862 [Portunidae]
- Portunus hastatus, Linnaeus 1767 [Portunidae]
- Portunus incertus, A. Milne-Edwards 1860 [Portunidae]
- Portunus kisslingi, Studer 1892 [Portunidae]
- Portunus kochi, Bittner 1893 [Portunidae]
- Portunus krambergeri, Bittner 1893 [Portunidae]
- Portunus larteti, A. Milne-Edwards 1860 [Portunidae]
- Portunus miocaenicus, Muller 1984 [Portunidae]
- Portunus miyaku, Karasawa and Nobuhara 2008 [Portunidae]
- Portunus monspeliensis, A. Milne-Edwards 1860 [Portunidae]
- Portunus neogenicus, Muller 1978 [Portunidae]
- Portunus obtusus, A. Milne-Edwards 1860 [Portunidae]
- Portunus obvallatus, Morris and Collins 1991 [Portunidae]
- Portunus pelagicus, Linnaeus 1758 [Portunidae]
- Portunus pirabaensis, Martins-Neto 2001 [Portunidae]
- Portunus radobojanus, Bittner 1884 [Portunidae]
- Portunus regulensis, Van Straelen 1939 [Portunidae]
- Portunus ristorii, Karasawa et al. 2008 [Portunidae]
- Portunus sanshianus, Hu 1984 [Portunidae]
- Portunus sebae, H. Milne-Edwards 1834 [Portunidae]
- Portunus sijuensis, Satsangi and Parida 1980 [Portunidae]
- Portunus spinimanus, Latreille 1819 [Portunidae]
- Portunus stenaspis, Bittner 1884 [Portunidae]
- Portunus straeleni, Via 1948 [Portunidae]
- Portunus suessi, Bittner 1875 [Portunidae]
- Portunus thalae, Macarovici 1970 [Portunidae]
- Portunus tongfai, Hu 1981 [Portunidae]
- Portunus vectensis, Carter 1898 [Portunidae]
- Portunus vicentinus, A. Milne-Edwards 1860 [Portunidae]
- Portunus withersi, Glaessner 1933 [Portunidae]
- Portunus woodwardi, Morris and Collins 1991 [Portunidae]
- Portunus wynneanus, Stoliczka 1871 [Portunidae]
- Portunus xantusii, Stimpson 1862 [Portunidae]
- Potamidae, family, Ortmann 1896 [Decapoda]
- Potaminae, subfamily, Ortmann 1896 [Potamidae]
- Potamiscinae, subfamily, Bott 1970 [Potamidae]
- Potamoidea, superfamily, Ortmann 1896 [Decapoda]
- Potamon, Savigny 1816 [Potamidae]
- Potamon antiquum, Szombathy 1916 [Potamidae]
- Potamon castellinense, Szombathy 1916 [Potamidae]
- Potamon ibericum, Bachmayer and Pretzmann 1971 [Potamidae]
- Potamon quenstedti, Zittel 1885 [Potamidae]
- Potamon sivalense, Glaessner 1933 [Potamidae]
- Potamon speciosum, Von Meyer 1862 [Potamidae]
- Potamonautes niloticus, H. Milne-Edwards 1837 [Potamonautidae]
- Potamonautes tugenensis, Morris 1976 [Potamonautidae]
- Potamonautidae, family, Bott 1970 [Decapoda]
- Potamonautinae, subfamily, Bott 1970 [Potamonautidae]
- Poupiniidae, family, Guinot 1991 [Decapoda]
- Praealbunea, Fraaije 2002 [Albuneidae]
- Praealbunea rickorum, Fraaije 2002 [Albuneidae]
- Preclarocarcinus, C. Schweitzer et al. 2009 [Homolodromiidae]
- Preclarocarcinus parvus, C. Schweitzer et al. 2009 [Homolodromiidae]
- Pregeryona, Hu and Tao 1996 [Decapoda]
- Pregeryona taiwanica, Hu and Tao 1996 [Decapoda]
- Prehepatus lenolensis, Rathbun 1935 [Aethridae]
- Priabonella, Beschin et al. 2006 [Aethridae]
- Priabonella violatii, Beschin et al. 2006 [Aethridae]
- Priabonocarcinus, Muller and Collins 1991 [Pseudoziidae]
- Priabonocarcinus gallicus, Muller and Collins 1991 [Pseudoziidae]
- Priscinachidae, family, Breton 2009 [Decapoda]
- Priscinachus, Breton 2009 [Priscinachidae]
- Priscinachus elongatus, Breton 2009 [Priscinachidae]
- Pristinaspina, C. Schweitzer and R. Feldmann 2000 [Chirostylidae]
- Pristinaspina gelasina, C. Schweitzer and R. Feldmann 2000 [Chirostylidae]
- Procambarus, Ortmann 1905 [unclassified genus]
- Procambarus primaevus, Packard 1880 [Procambarus]
- Procarididae, family, Chance and Manning 1972 [Decapoda]
- Procaridoidea, superfamily, Chace and Manning 1972 [Decapoda]
- Processidae, family, Ortmann 1890 [Decapoda]
- Processoidea, superfamily, Ortmann 1890 [Decapoda]
- Prochlorodius ellipticus, Muller and Collins 1991 [Decapoda]
- Proeryon giganteus, Van Straekeb 1923 [Coleiidae]
- Proeryon hartmanni, Von Meyer 1835 [Coleiidae]
- Proeryon laticaudatus, Beurlen 1928 [Coleiidae]
- Proeryon stoddarti, Woodward 1881 [Coleiidae]
- Proeryon viluensis, Chernyshev 1930 [Coleiidae]
- Progeryonidae, Stevcic 2005 [Decapoda]
- Prohomola, Karasawa 1992 [Homolidae]
- Prohomola japonica, Yokoyama 1911 [Homolidae]
- Prohomola katunai, Blow and Manning 1996 [Homolidae]
- Propalaemon longispinata, Martins-Neto and Mezzalira 1991 [Palaemonidae]
- Propalaemon minor, Woodward 1903 [Palaemonidae]
- Propalaemon osborniensis, Woodward 1903 [Palaemonidae]
- Prosopon dzhafarberdensis, Ilyin 2005 [Prosopidae]
- Prosopon jocosum, Thurman and Etallon 1859 [Prosopidae]
- Protastacidae, family, Albrecht 1983 [Decapoda]
- Protastacidae antiquus, Harbort 1905 [Protastacidae]
- Protastacus, Albrecht 1983 [Protastacidae]
- Protastacus politus, Schluter 1868 [Protastacidae]
- Protaxius betajurensis, Quenstedt 1858 [Axiidae]
- Protaxius eocenicus, Secretan 1975 [Axiidae]
- Protaxius isochelus, Woodward 1876 [Axiidae]
- Protaxius suevicus, Beurlen 1930 [Axiidae]
- Protocallianassa antiqua, Roemer 1841 [Callianassidae]
- Protocallianassa archiaci, A. Milne-Edwards 1860 [Callianassidae]
- Protocallianassa australica, Glaessner 1956 [Callianassidae]
- Protocallianassa bohemica, Fritsch 1867 [Callianassidae]
- Protocallianassa brevis, Fritsch 1867 [Callianassidae]
- Protocallianassa caucasica, Aliev and Aliev 1980 [Callianassidae]
- Protocallianassa cenomanensis, A. Milne-Edwards 1860 [Callianassidae]
- Protocallianassa cliffwoodensis, Roberts 1962 [Callianassidae]
- Protocallianassa elongata, Fritsch 1867 [Callianassidae]
- Protocallianassa faujasi, Desmarest 1822 [Callianassidae]
- Protocallianassa gracilis, Fritsch 1867 [Callianassidae]
- Protocallianassa klofi, Bishop 1983 [Callianassidae]
- Protocallianassa mortoni, Pilsbry 1901 [Callianassidae]
- Protocallianassa patagonica, Aguirre Urreta 1982 [Callianassidae]
- Protocallianassa pleuralum, Beikirch and R. Feldmann 1980 [Callianassidae]
- Protocallianassa praecepta, Roberts 1962 [Callianassidae]
- Protocallianassa russelli, Bishop 1985 [Callianassidae]
- Protocallianassa sarysuensis, Aliev and Aliev 1980 [Callianassidae]
- Protocallianassa tourtiae, Fritsch 1867 [Callianassidae]
- Protomunida munidoides, Segerberg 1900 [Galatheidae]
- Protomunida pentacantha, Muller and Collins 1991 [Galatheidae]
- Proxicarpilius planifrons, Collins and Morris 1978 [Carpiliidae]
- Psalidopodidae, family, Wood-Mason and Alcock 1892 [unclassified family]
- Psalidopodoidea, superfamily, Wood-Mason and Alcock 1892 [Decapoda]
- Psammocarcinidae, family, Berrlen 1930 [Decapoda]
- Psammocarcinus hericarti, Desmarest 1822 [Psammocarcinidae]
- Psammograpsus, A. Milne-Edwards 1860 [Decapoda]
- Psammograpsus parisiensis, A. Milne-Edwards 1860 [Decapoda]
- Pseudastacus hakelensis, Fraas 1878 [Stenochiridae]
- Pseudastacus minor, Fraas 1878 [Stenochiridae]
- Pseudastacus mucronatus, Phillips 1836 [Stenochiridae]
- Pseudastacus pusillus, Van Straelen 1924 [Stenochiridae]
- Pseudastacus pustulosus, Munster 1839 [Stenochiridae]
- Pseudoachelous, Portell and Collins 2004 [Portunidae]
- Pseudoachelous schindleri, Portell and Collins 2004 [Portunidae]
- Pseudobombur, Secretan 1975 [Decapoda]
- Pseudobombur nummuliticus, Secretan 1975 [Decapoda]
- Pseudocarcinus gigas, Lamarck 1818 [Oziidae]
- Pseudocaridinella, Martins-Neto and Mezzalira 1991 [Palaemonidae]
- Pseudocaridinella roxoi, Beurlen 1950 [Palaemonidae]
- Pseudocaridinella tremembeensis, Beurlen 1950 [Palaemonidae]
- Pseudochelidae, family, De Grave and Moosa 2004 [Decapoda]
- Pseudocoleia, Garassino and Teruzzi 1993 [unclassified genus]
- Pseudocoleia mazzolenii, Garassino and Teruzzi 1993 [Pseudocoleia]
- Pseudodaranyia, Tessier et al. 1999 [Decapoda]
- Pseudodaranyia carinata, Tessier et al. 1999 [Decapoda]
- Pseudodromilites, Beurlen 1928 [Dromiidae]
- Pseudodromilites hilarionis, Bittner 1883 [Dromiidae]
- Pseudodromilites pentagonalis, Beurlen 1928 [Dromiidae]
- Pseudodusa, Schweigert and Garassino 2004 [Decapoda]
- Pseudodusa frattigianii, Schweigert and Garassino 2004 [Decapoda]
- Pseudoglyphea alpina, Forster 1971 [Litogastroidae]
- Pseudoglyphea amalthea, Oppel 1861 [Litogastroidae]
- Pseudoglyphea etalloni, Oppel 1862 [Litogastroidae]
- Pseudoglyphea eximia, Oppel 1861 [Litogastroidae]
- Pseudoglyphea foersteri, Feldmann 2002 [Litogastroidae]
- Pseudoglyphea friulana, Garassino and Rigo 2008 [Litogastroidae]
- Pseudoglyphea gigantea, Garassino and Teruzzi 1993 [Litogastroidae]
- Pseudoglyphea grandis, Von Meyer 1837 [Litogastroidae]
- Pseudoglyphea hamifera, Tate 1876 [Litogastroidae]
- Pseudoglyphea jourdani, Dumortier 1867 [Litogastroidae]
- Pseudoglyphea mulleri, Van Straelen 1936 [Litogastroidae]
- Pseudoglyphea numismalis, Oppel 1854 [Litogastroidae]
- Pseudoglyphea paronae, Colosi 1921 [Litogastroidae]
- Pseudoglyphea straeleni, Theobald 1953 [Litogastroidae]
- Pseudoglyphea terquemi, Oppel 1861 [Litogastroidae]
- Pseudohepatiscus, Blow and Manning 1996 [Aethridae]
- Pseudohepatiscus marinoi, Blow and Manning 1996 [Aethridae]
- Pseudohepatiscus silvanoi, De Angeli and Beschin 1999 [Aethridae]
- Pseudohomarus, Van Hoepen 1962 [Nephropidae]
- Pseudohomarus umsinenensis, Van Hoepen 1962 [Nephropidae]
- Pseudomicippella, C. Schweitzer et al. 2010 [Decapoda]
- Pseudomicippella granulosa, Pelseneer 1886 [Decapoda]
- Pseudonecrocarcinus biscissus, Wright and Collins 1972 [Necrocarcinidae]
- Pseudonecrocarcinus gamma, Roberts 1962 [Necrocarcinidae]
- Pseudonecrocarcinus quadriscissus, Noetling 1881 [Necrocarcinidae]
- Pseudonecrocarcinus stenzeli, Bishop 1983 [Necrocarcinidae]
- Pseudopemphix albertii, Von Meyer 1840 [Litogastroidae]
- Pseudopemphix fritschi, Wust 1840 [Litogastroidae]
- Pseudopemphix meyeri, Alberti 1864 [Litogastroidae]
- Pseudophilyra, Miers [Leucosiidae]
- Pseudophilyra elongatella, Hu and Tao 1996 [Leucosiidae]
- Pseudophilyra granulimarginata, Karasawa 2008 [Leucosiidae]
- Pseudophlyctenodes, Busulini 2006 [Xanthidae]
- Pseudophlyctenodes hantkeni, Lorenthey 1897 [Xanthidae]
- Pseudorhombila patagonica, Glaessner 1933 [Panopeidae]
- Pseudothelphusidae, family, Ortmann 1893 [Decapoda]
- Pseudothelphusinae, subfamily, Ortmann 1893 [unclassified subfamily]
- Pseudothelphusoidea, superfamily, Ortmann 1893 [Decapoda]
- Psopheticus, Wood-Mason 1892 [Goneplacidae]
- Psopheticus shujenae, Hu and Tao 1996 [Goneplacidae]
- Psopheticus stridulans, Wood-Mason 1892 [Goneplacidae]
- Psygmophthalmus bifurcatus, Collins 2009 [Portunidae]
- Pterocarcinus, Blow 2003 [Leucosiidae]
- Pterocarcinus baileyi, Blow 2003 [Leucosiidae]
- Pugettia incisa, De Haan 1839 [Pugettia]
- Pugettia producta, Randall 1839 [Pugettia]
- Pugettia richii, Dana 1851 [Pugettia]
- Pugettia yamafui, Karasawa and Kitamura 2003 [Pugettia]
- Pulalius, C. Schweitzer et al. 2000 [Tumidocarcinidae]
- Pulalius dunhamorum, C. Schweitzer 2000 [Tumidocarcinidae]
- Pulalius vulgaris, Rathbun 1926 [Tumidocarcinidae]
- Pustulina calloviensis, Forster 1966 [Erymidae]
- Pustulina elegans, Mechin 1901 [Erymidae]
- Pustulina granulata, Bell 1863 [Erymidae]
- Pustulina minuta, Schlotheim 1822 [Erymidae]
- Pustulina perroni, Etallon 1861 [Erymidae]
- Pustulina pseudobabeaui, Dollfus 1863 [Erymidae]
- Pustulina scabra, Bell 1863 [Erymidae]
- Pustulina sinemuriana, Garassino 1996 [Erymidae]
- Pustulina spinulata, Secretan 1964 [Erymidae]
- Pustulina suevica, Quenstedt 1857 [Erymidae]
- Pustulina tuberculata, Bell 1863 [Erymidae]
- Pylochelidae, family, Bate 1888 [Decapoda]
- Pylojacquesidae, family, McLaughlin and Lemaitre 2001 [unclassified family]
- Pylopagurus, A. Milne-Edwards 1861 [Paguridae]
- Pylopagurus corallinus, Muller 1996 [Paguridae]
- Pylopagurus leganyii, Muller 1984 [Paguridae]
- Pyromaia inflata, Collins and Morris 1978 [Inachoididae]
- Pyromaia tuberculata, Lockington 1877 [Inachoididae]
- Quasilaeviranina, Tucker 1998 [Palaeocorystidae]
- Quasilaeviranina arzignanensis, Beschin et al. 1988 [Palaeocorystidae]
- Quasilaeviranina keyesi, R. Feldmann and Maxwell 1990 [Palaeocorystidae]
- Quasilaeviranina ombonii, Fabiani 1910 [Palaeocorystidae]
- Quasilaeviranina pororariensis, Glaessner 1980 [Palaeocorystidae]
- Quasilaeviranina simplicissima, Bittner 1883 [Palaeocorystidae]
- Rakosia carupoides, Muller 1984 [Portunidae]
- Rakosia rectifrons, Muller 1996 [Portunidae]
- Randallia jingomao, Hu and Tao 2004 [Leucosiidae]
- Randallia ornata, Randall 1839 [Leucosiidae]
- Randallia prolanata, Hu and Tao 1996 [Leucosiidae]
- Randallia saitoensis, Karasawa 1993 [Leucosiidae]
- Randallia strouhali, Bachmayer 1953 [Leucosiidae]
- Ranidina rosaliae, Bittner 1893 [Palaeocorystidae]
- Ranilia constricta, Beschin et al. 1988 [Palaeocorystidae]
- Ranilia vareolata, Lorenthey 1929 [Palaeocorystidae]
- Raniliformis baltica, Segerberg 1900 [Palaeocorystidae]
- Raniliformis bellini, De Angeli 2010 [Palaeocorystidae]
- Raniliformis chevrona, Fraaye and Van Bakel 1998 [Palaeocorystidae]
- Raniliformis eocaenica, Beschin et al. 1988 [Palaeocorystidae]
- Raniliformis occlusa, Collins et al. 1995 [Palaeocorystidae]
- Raniliformis ornata, De Angeli and Beschin 2007 [Palaeocorystidae]
- Raniliformis prebaltica, Fraaye and Van Bakel 1998 [Palaeocorystidae]
- Raniliformis rugosa, De Angeli and Beschin 2007 [Palaeocorystidae]
- Ranina americana, Withers 1924 [Palaeocorystidae]
- Ranina bouilleana, A. Milne-Edwards 1872 [Palaeocorystidae]
- Ranina brevispina, Lorenthey 1898 [Palaeocorystidae]
- Ranina burleighensis, Holland and Cvancara 1958 [Palaeocorystidae]
- Ranina cuspidata, Guppy 1909 [Palaeocorystidae]
- Ranina granulosa, A. Milne-Edwards 1872 [Palaeocorystidae]
- Ranina haszlinskyi, Reuss 1859 [Palaeocorystidae]
- Ranina hirsuta, Schafhautl 1863 [Palaeocorystidae]
- Ranina molengraaffi, Van Straelen 1924 [Palaeocorystidae]
- Ranina oblonga, Munster 1840 [Palaeocorystidae]
- Ranina palmea, E. Sismonda 1846 [Palaeocorystidae]
- Ranina propinqua, Ristori 1891 [Palaeocorystidae]
- Ranina ranina, Linnaeus 1758 [Palaeocorystidae]
- Ranina speciosa, Munster 1840 [Palaeocorystidae]
- Raninella atava, Carter 1898 [Palaeocorystidae]
- Raninella carlilensis, R. Feldmann and Maxey 1980 [Palaeocorystidae]
- Raninella griesbachi, Noetling 1897 [Palaeocorystidae]
- Raninella libyca, Van Straelen 1935 [Palaeocorystidae]
- Raninella manningi, Bishop and Williams 2000 [Palaeocorystidae]
- Raninella oaheensis, Bishop 1978 [Palaeocorystidae]
- Raninella quadrispinosus, Collins et al. 1995 [Palaeocorystidae]
- Raninella testacea, Rathbun 1926 [Palaeocorystidae]
- Raninella trechmanni, Withers 1927 [Palaeocorystidae]
- Raninella tridens, Roberts 1962 [Palaeocorystidae]
- Raninella trigeri, A. Milne-Edwards 1862 [Palaeocorystidae]
- Ranininae, subfamily, De Haan 1839 [Palaeocorystidae]
- Raninoides acaucana, Philippi 1887 [Palaeocorystidae]
- Raninoides barnardi, Sakai 1974 [Palaeocorystidae]
- Raninoides borealis, Collins and Rasmussen 1992 [Palaeocorystidae]
- Raninoides budapestiniensis, Lorenthey 1897 [Palaeocorystidae]
- Raninoides fabianii, Lorenthey 1929 [Palaeocorystidae]
- Raninoides fulungensis, Hu and Tao 1999 [Palaeocorystidae]
- Raninoides glabra, Woodward 1871 [Palaeocorystidae]
- Raninoides goedertorum, Tucker 1998 [Palaeocorystidae]
- Raninoides gottschei, Bohm 1927 [Palaeocorystidae]
- Raninoides hollandica, Collins 1997 [Palaeocorystidae]
- Raninoides javanus, Bohm 1922 [Palaeocorystidae]
- Raninoides madurensis, Beets 1950 [Palaeocorystidae]
- Raninoides morrisi, Collins 2003 [Palaeocorystidae]
- Raninoides nodai, Karasawa 1992 [Palaeocorystidae]
- Raninoides notopoides, Bittner 1883 [Palaeocorystidae]
- Raninoides perarmata, Glaessner 1960 [Palaeocorystidae]
- Raninoides pliocenicus, De Angeli 2009 [Palaeocorystidae]
- Raninoides pulchra, Beschin et al. 1988 [Palaeocorystidae]
- Raninoides rangiferus, Fraaye 1995 [Palaeocorystidae]
- Raninoides rathbunae, Van Straelen 1933 [Palaeocorystidae]
- Raninoides sinuosus, Collins and Morris 1978 [Palaeocorystidae]
- Raninoides treldenaesensis, Collins and Jakobsen 2003 [Palaeocorystidae]
- Rathbunites, C. Schweitzer et al. 2010 [Portunidae]
- Rathbunites pentaspinosa, Collins 2009 [Portunidae]
- Rathbunopon atherfieldensis, Wright 1997 [Prosopidae]
- Rathbunopon obesum, Van Straelen 1944 [Prosopidae]
- Rathbunopon oblitum, Carter 1898 [Prosopidae]
- Rathbunopon schrattenkalkensis, Klompmaker et al. 2010 [Prosopidae]
- Rathbunopon woodsi, Withers 1951 [Prosopidae]
- Rauna angusta, Munster 1839 [Decapoda]
- Remia africana, Remy 1954 [Palaeoxanthopsidae]
- Remyranina, C. Schweitzer and R. Feldmann 2010 [Palaeocorystidae]
- Remyranina ornata, Remy 1960 [Palaeocorystidae]
- Reschia, Schweigert 2010 [Laomediidae]
- Reschia barbarae, Schweigert 2010 [Laomediidae]
- Retrocypoda almelai, Via 1959 [Retroplumidae]
- Retropluma borealis, Fraaife et al. 2005 [Geryonidae]
- Retropluma gallica, Artal et al. 2006 [Geryonidae]
- Retropluma laurentae, Collins 2003 [Geryonidae]
- Retroplumoidea, superfamily, Gill 1894 [Decapoda]
- Retrorsichela laevis, R. Feldmann et al. 1993 [Retrorsichelidae]
- Retrorsichelidae, family, R. Feldmann et al. [Decapoda]
- Rhachiosoma bispinosa, Woodward 1871 [Macropipidae]
- Rhachiosoma echinata, Woodward 1871 [Macropipidae]
- Rhinodromia, C. Schweitzer 2004 [Homolodromiidae]
- Rhinolambrus, A. Milne-Edwards 1879 [Parthenopidae]
- Rhinolambrus pelagicus, Ruppell 1830 [Parthenopidae]
- Rhinolambrus sublitoralis, Morris and Collins 1991 [Parthenopidae]
- Rhinopoupinia bicornis, R. Feldmann et al. 1993 [Poupiniidae]
- Rhizopinae, subfamily, Stimpson 1858 [Pilumnidae]
- Rhodanicaris depereti, Van Straelen 1924 [Decapoda]
- Rhynchocinetidae, family, Ortmann 1890 [Decapoda]
- Rocacarcinus gerthi, Glaessner 1930 [Palaeoxanthopsidae]
- Rogueus orri, Berglund and R. Feldmann 1989 [Palaeocorystidae]
- Romaleon antennarium, Stimpson 1873 [Cancridae]
- Romaleon dereki, Natinos 1975 [Cancridae]
- Romaleon gibbosulum, De Haan 1833 [Cancridae]
- Romaleon jordani, Rathbun 1900 [Cancridae]
- Romaleon nakagawaensis, Kato and Hikida 2002 [Cancridae]
- Romaleon polyodon, Poeppig 1836 [Cancridae]
- Romaleon sakamotoi, Kato 1996 [Cancridae]
- Romaleon sanbonsugii, Imaizumi 1962 [Cancridae]
- Romaleon urbanus, Rathbun 1917 [Cancridae]
- Rosenfeldia, Garassino et al. 1996 [Eryonidae]
- Rosenfeldia triasica, Garassino et al. 1996 [Eryonidae]
- Rugafarius fredrichi, Bishop 1985 [Palinuridae]
- Sabahranina, Collins 2003 [Palaeocorystidae]
- Sabahranina trushidupensis, Collins 2003 [Palaeocorystidae]
- Santeecarcinus, Blow and Manning 1996 [Cancridae]
- Santeecarcinus harmatuki, Blow and Manning 1996 [Cancridae]
- Santeella, Blow and Manning 1996 [Pilumnidae]
- Santeella lillyae, Blow and Manning 1996 [Pilumnidae]
- Santeexanthus, Blow and Manning 1996 [Pseudoziidae]
- Santeexanthus wardi, Blow and Manning 1996 [Pseudoziidae]
- Sarahcarcinus, Blow and Manning 1996 [Cancridae]
- Sarahcarcinus campbellorum, Blow and Manning 1996 [Cancridae]
- Saratunus, Collins 2003 [Portunidae]
- Saratunus karasawai, Collins 2003 [Portunidae]
- Saratunus longiorbis, Collins 2003 [Portunidae]
- Satyrocaris, Garassino and Teruzzi 1993 [Decapoda]
- Satyrocaris cristatus, Garassino and Teruzzi 1993 [Decapoda]
- Scalopidiidae, family, Stevcic 2005 [Decapoda]
- Schizophroida, Sakai 1933 [Majinae]
- Schizophroida tertiaria, Jenkins 1985 [Schizophroida]
- Schizophrys, White 1847 [Majinae]
- Schizophrys visegradensis, Muller 1984 [Schizophrys]
- Schlueteria carinata, Taylor 1979 [Axiidae]
- Schlueteria menabensis, Secretan 1964 [Axiidae]
- Schlueteria tetracheles, Fritsch and Kafka 1887 [Axiidae]
- Schlueteria tuberculosa, Secretan 1964 [Axiidae]
- Schmelingia, Schweigert 2002 [Palaemonidae]
- Schmelingia wulfi, Schweigert 2002 [Palaemonidae]
- Sculptoplax, Muller and Collins 1991 [Xanthidae]
- Sculptoplax rigida, Muller and Collins 1991 [Xanthidae]
- Scylla hassiaca, Ebert 1887 [Portunidae]
- Scylla laevis, Bohm 1922 [Portunidae]
- Scylla marianae, Hu and Tao 1996 [Portunidae]
- Scylla michelini, A. Milne-Edwards 1860 [Portunidae]
- Scylla molassica, Studer 1898 [Portunidae]
- Scylla ozawai, Glaessner 1933 [Portunidae]
- Scylla serrata, Forskal 1775 [Portunidae]
- Scylla sindensis, Stoliczka 1871 [Portunidae]
- Scyllarella gardneri, Woods 1925 [Scyllaridae]
- Scyllaridae, family, Latreille 1825 [Palinuroidea]
- Scyllarides aequinoctialis, Lund 1793 [Scyllaridae]
- Scyllarides bolcensis, De Angeli and Garassino 2008 [Scyllaridae]
- Scyllarides koenigi, Bell 1858 [Scyllaridae]
- Scyllarides punctatus, Woods 1925 [Scyllaridae]
- Scyllarides tuberculatus, Konig 1825 [Scyllaridae]
- Scyllarus junghumi, Bohm 1922 [Scyllaridae]
- Scyllarus mantelli, Desmarest 1822 [Scyllaridae]
- Scyra acutifrons, Dana 1851 [Epialtidae]
- Secretanella, Guinot and Tavares 2001 [Etyidae]
- Secretanella arcuata, Secretan 1964 [Etyidae]
- Selenisca gratiosa, Von Meyer 1847 [Mecochiridae]
- Seorsus, Bishop 1988 [Ibericancridae]
- Seorsus millerae, Bishop 1922 [Ibericancridae]
- Seorsus wadei, Bishop 1988 [Ibericancridae]
- Sereneopeus, Collins 2002 [Panopeidae]
- Sereneopeus humilis, Beschin et al. 2007 [Panopeidae]
- Sereneopeus kempi, Quayle and Collins 1981 [Panopeidae]
- Serenius, Guinot 1976 [Xanthidae]
- Serenius ceylonicus, Laurie 1906 [Xanthidae]
- Sergestidae, family, Dana 1852 [unclassified family]
- Sergestoidea, superfamily, Dana 1852 [Decapoda]
- Sergio, Manning and Lemaitre 1994 [Callianassidae]
- Sergio trilobatus, Biffar 1970 [Callianassidae]
- Sesarma paraensis, Beurlen 1958 [Sesarmidae]
- Sesarma primigenium, Collins 2009 [Sesarmidae]
- Sesarmidae, family, Dana 1851 [Decapoda]
- Sestrostoma, Davie and Ng 2007 [Varunidae]
- Sestrostoma hichiro, Karasawa and Tanaka 2005 [Varunidae]
- Sharnia, Collins and Saward 2006 [Etyidae]
- Sharnia burnhamensis, Collins and Saward 2006 [Etyidae]
- Shazella, Collins and Williams 2004 [Necrocarcinidae]
- Shazella abbotsensis, Collins and Williams 2004 [Necrocarcinidae]
- Sicyonia roemeri, Von der Marck 1858 [Decapoda]
- Sicyoniidae, family, Ortmann 1898 [Decapoda]
- Sicyoniidae, family, Ortmann 1898 [unclassified family]
- Silvacarcinus laurae, Collins and Smith 1992 [Orithopsidae]
- Simonellia quircensis, Vinassa Regny 1897 [Euryplacidae]
- Sinopemphix, Fenglin 1975 [Pemphicidae]
- Sinopemphix quizhouensis, Fenglin 1975 [Pemphicidae]
- Sodakus mexicanus, Vega et al. 1995 [Ibericancridae]
- Sodakus tatankayotankaensis, Bishop 1978 [Ibericancridae]
- Solenoceridae, family, Wood-Mason 1891 [Decapoda]
- Spathagalathea, De Angeli and Garassino 2002 [Galatheidae]
- Spathagalathea minuta, De Angeli and Garassino 2002 [Galatheidae]
- Speocarcininae, subfamily, Stevcic 2005 [Xanthidae]
- Speocarcinus berglundi, Tucker 1994 [Xanthidae]
- Sphaerodromiidae, family, Guinot and Tavares 2003 [Decapoda]
- Spinipalicus, Beschin and De Angeli 2003 [Palicidae]
- Spinipalicus italicus, Beschin and De Angeli 2003 [Palicidae]
- Spongicolidae, family, Schram 1986 [Decapoda]
- Squamosoglyphea, Beurlen 1930 [Glypheidae]
- Squamosoglyphea redenbacheri, Schweigert and Garassino 2005 [Glypheidae]
- Squamosoglyphea rogeri, Schweigert and Garassino 2005 [Glypheidae]
- Squamosoglyphea squamosa, Munster 1839 [Glypheidae]
- Squamosoglyphea udressieri, Von Meyer 1840 [Glypheidae]
- Stemonopa, Efford and Haig 1968 [Albuneidae]
- Stemonopa prisca, De Angeli et al. 2005 [Albuneidae]
- Stenochiridae, family, Beurlen 1928 [Decapoda]
- Stenochirus angustus, Munster 1839 [Stenochiridae]
- Stenochirus mayeri, Oppel 1862 [Stenochiridae]
- Stenochirus vahldieki, Schweigert et al. 2006 [Stenochiridae]
- Stenocionops dyeri, Blow 2003 [Majidae]
- Stenodactylina liasina, Beurlen 1928 [Erymidae]
- Stenodromia calasanctii, Via 1959 [Calappidae]
- Stenodromia gibbosa, A. Milne-Edwards 1873 [Calappidae]
- Stenopodidae, family, Claus 1872 [Decapoda]
- Stenorhynchus lethaeus, Smirnov 1929 [Inachidae]
- Stephanometopon granulatum, Bosquet 1854 [Decapoda]
- Stintonius, Collins 2002 [Cheiragonidae]
- Stintonius subovata, Quayle and Collins 1981 [Cheiragonidae]
- Stoaplax, Vega and Cosma 2001 [Euryplacidae]
- Stoaplax nandachare, Vega and Cosma 2001 [Euryplacidae]
- Strahlaxiidae, family, Poore 1994 [Decapoda]
- Striadiogenes, Garassino et al. 2009 [Diogenidae]
- Striadiogenes frigerioi, Garassino et al. 2009 [Diogenidae]
- Stylodactylidae, family, Bate 1888 [unclassified family]
- Stylodactyloidea, superfamily, Bate 1888 [Decapoda]
- Styrioplax exiguus, Glaessner 1928 [Pilumnidae]
- Sylviocarcinus, H. Milne-Edwards 1853 [Trichodactylidae]
- Sylviocarcinus piriformis, Pretzmann 1968 [Trichodactylidae]
- Syphaxiella, C. Schweitzer et al. 2010 [Decapoda]
- Syphaxiella crassus, A. Milne-Edwards 1864 [Decapoda]
- Szaboa, Muller and Galil 1998 [Matutidae]
- Szaboa inermis, Brocchi 1883 [Matutidae]
- Szaboa lamarei, C. Schweitzer and R. Feldmann 2010 [Matutidae]
- Tanaocheleidae, family, Ng and Clark 2000 [Decapoda]
- Tanidromites lithuanicus, Schweigert and Koppka 2010 [Tanidromitidae]
- Tanidromites montreuilense, Cronier and Bouriscot 2009 [Tanidromitidae]
- Tanidromites pustulosus, Von Meyer 1860 [Tanidromitidae]
- Tanidromites scheffnerae, Schweigert and Koppka 2010 [Tanidromitidae]
- Tanidromites sculpta, Quenstedt 1857 [Tanidromitidae]
- Tanzanonautes, R. Feldmann 2007 [Potamonautidae]
- Tanzanonautes tuerkai, R. Feldmann 2007 [Potamonautidae]
- Tasadia carniolica, Bittner 1884 [Cancridae]
- Tehuacana meridionalis, Secretan 1961 [Mathildellidae]
- Tehuacana schweitzerae, Vega 2008 [Mathildellidae]
- Telamonocarcinus binodosus, Collins et al. 1993 [Dorippidae]
- Teleophrys, Stimpson 1860 [Majidae]
- Teleophrys acornis, Portell and Collins 2004 [Majidae]
- Tepexicarcinus tlayuaensis, R. Feldmann et al. 1998 [Dorippidae]
- Tetracarcinus subquadratus, Weller 1905 [Dakoticancridae]
- Tetralia, Dana 1851 [Tetraliidae]
- Tetralia loerentheyi, Muller 1975 [Tetraliidae]
- Tetraliidae, family, Castro et al. 2004 [Decapoda]
- Tetraxanthus, Rathbun 1898 [Panopeidae]
- Tetraxanthus rathbunae, Chace 1939 [Panopeidae]
- Thalamita, Latreille 1829 [Portunidae]
- Thalamita admete, Herbst 1803 [Portunidae]
- Thalamita crenata, Latreille 1829 [Portunidae]
- Thalamita fani, Hu and Tao 1996 [Portunidae]
- Thalamita pleistocenica, Hu and Tao 1979 [Portunidae]
- Thalamita truncatata, Hu and Tao 1996 [Portunidae]
- Thalamitinae, subfamily, Paulson 1875 [Portunidae]
- Thalamitoides, A. Milne-Edwards 1869 [Portunidae]
- Thalamitoides quadridens, A. Milne-Edwards 1869 [Portunidae]
- Thalassina anomala, Herbst 1804 [Thalassinidae]
- Thalassina grandidactylus, Robineau Desvoidy 1849 [Thalassinidae]
- Thalassinidae, family, Latreille 1983 [Decapoda]
- Thalassocarididae, family, Bate 1888 [Decapoda]
- Thalassograpsinae, subfamily, Davie and Ng 2007 [Varunidae]
- Thaumastochelidae, family, Bate 1888 [Decapoda]
- Thelecarcinus guembeli, Bohm 1922 [Decapoda]
- Thelphusograpsus, Lorenthey 1902 [Decapoda]
- Thelphusograpsus laevis, Lorenthey 1902 [Decapoda]
- Thia, Leach 1816 [Thiidae]
- Thiidae, family, Dana 1852 [Decapoda]
- Thomassiniidae, family, Saint Laurent 1979 [Decapoda]
- Tiche astaciformis, Vonder Marck 1863 [Decapoda]
- Tillocheles kaoriae, Yokoi and Karasawa 2000 [Stenochiridae]
- Tillocheles shannonae, Woods 1957 [Stenochiridae]
- Titanocarcinus euglyphos, Bittner 1875 [Tumidocarcinidae]
- Titanocarcinus mammilatus, Secretan 1964 [Tumidocarcinidae]
- Titanocarcinus polonicus, Fraaye 1994 [Tumidocarcinidae]
- Titanocarcinus sismondae, A. Milne-Edwards 1864 [Tumidocarcinidae]
- Titanocarcinus zoellneri, Bachmayer and Mundlos 1968 [Tumidocarcinidae]
- Titanodorippe, Blow and Manning 1996 [Dorippidae]
- Titanodorippe eocenica, Blow and Manning 1996 [Dorippidae]
- Tokoyo, Galil 2003 [Leucosiidae]
- Tokoyo eburnea, Alcock 1896 [Leucosiidae]
- Tokoyo trinuclodea, Hu and Tao 1996 [Leucosiidae]
- Tonellocaris, Garassino 1998 [Oplophoridae]
- Tonellocaris brevirostrata, Garassino 1998 [Oplophoridae]
- Torynomma australis, R. Feldmann et al. 1993 [Decapoda]
- Torynomma densus, Bishop 1983 [Decapoda]
- Torynomma dentatum, Glaessner 1980 [Decapoda]
- Torynomma flemingi, Glaessner 1980 [Decapoda]
- Torynomma planata, R. Feldmann 1993 [Decapoda]
- Torynomma quadrata, Woods 1953 [Decapoda]
- Torynommidae, family, Glaessner 1980 [Torynommoidea]
- Torynommoidea, superfamily, Glaessner 1980 [unclassified superfamily]
- Trachynotocarcinus, Wright and Collins 1972 [Goniodromitidae]
- Trachynotocarcinus naglei, Bishop 1983 [Goniodromitidae]
- Trachynotocarcinus sulcatus, Bell 1863 [Goniodromitidae]
- Trachypirimela, Muller 1974 [Pirimelidae]
- Trachypirimela grippi, Muller 1974 [Pirimelidae]
- Trachysoma alpina, Oppel 1861 [Glypheidae]
- Trachysoma antipodum, Glaessner 1960 [Glypheidae]
- Trachysoma bronnii, Vosinsky 1848 [Glypheidae]
- Trachysoma cretacea, McCoy 1849 [Glypheidae]
- Trachysoma etalloni, Oppel 1861 [Glypheidae]
- Trachysoma granulosa, Beurlen 1928 [Glypheidae]
- Trachysoma heeri, Oppel 1861 [Glypheidae]
- Trachysoma lundgreni, Schluter 1874 [Glypheidae]
- Trachysoma ornata, Quenstedt 1858 [Glypheidae]
- Trachysoma pustulosa, Von Meyer 1840 [Glypheidae]
- Trachysoma rostrata, Phillips 1829 [Glypheidae]
- Trachysoma scabra, Bell 1858 [Glypheidae]
- Trachysoma terquemi, Oppel 1861 [Glypheidae]
- Trachysoma tomesi, Woodward 1868 [Glypheidae]
- Trapezia, Latreille 1825 [Trapeziidae]
- Trapezia brevispinosa, Karasawa 1993 [Trapeziidae]
- Trapezia digitalis, Latreille 1828 [Trapeziidae]
- Trapezia glaessner, Muller 1975 [Trapeziidae]
- Trapezia prisca, Portell and Collins 2004 [Trapeziidae]
- Trechmannius, Collins and Donovan 2006 [Goniodromitidae]
- Trechmannius circularis, Collins and Donovan 2006 [Goniodromitidae]
- Tribolocephalus laevis, Ristori 1886 [Palaeocorystidae]
- Trichodactylidae, family, H. Milne-Edwards 1853 [Decapoda]
- Trichodactylinae, subfamily, H. Milne-Edwards 1853 [unclassified subfamily]
- Trichodactyloidea, superfamily, H. Milne-Edwards 1853 [Decapoda]
- Trichopeltarion berglundorum, C. Schweitzer and R. Feldmann 1999 [Atelecyclidae]
- Trichopeltarion decorus, Rathbun 1945 [Atelecyclidae]
- Trichopeltarion granulosa, C. Schweitzer and Salva 2000 [Atelecyclidae]
- Trichopeltarion huziokai, Imaizumi 1951 [Atelecyclidae]
- Trichopeltarion inflatus, Kato 1996 [Atelecyclidae]
- Trichopeltarion merrinae, C. Schweitzer and Salva 2000 [Atelecyclidae]
- Tritodynamia, Ortmann 1894 [Macrophthalmidae]
- Tritodynamia miocaenica, Muller 2006 [Macrophthalmidae]
- Tritodynamiinae, subfamily, Stevcic 2005 [Macrophthalmidae]
- Trogloplacinae, subfamily, Guinot 1986 [Chasmocarcinidae]
- Tropifer laevis, Gould 1857 [Coleiidae]
- Trypaea, Dana 1852 [Callianassidae]
- Trypaea mizunamiensis, Karasawa 1993 [Callianassidae]
- Tumidocarcinus dentatus, Glaessner 1960 [Tumidocarcinidae]
- Tumidocarcinus foesteri, Aguirre-Urreta 1995 [Tumidocarcinidae]
- Tumidocarcinus tumidus, Woodward 1876 [Tumidocarcinidae]
- Tumidocarcinus victoriensis, Crespin 1947 [Tumidocarcinidae]
- Tumidomaia, R. Feldmann et al. 2010 [Majinae]
- Tumidomaia batalleri, Via 1959 [Tumidomaia]
- Tumidomaia mokattamensis, R. Feldmann et al. 2010 [Tumidomaia]
- Tumidomaia priabonensis, Oppenheim 1901 [Tumidomaia]
- Tutankhamen, Rathbun 1925 [Parthenopidae]
- Tutankhamen hieracodes, Jenkins 1985 [Parthenopidae]
- Tychinae, subfamily, Dana 1851 [Epialtidae]
- Tylocarcinus, Miers 1879 [Epialtidae]
- Tylocarcinus styx, Herbst 1803 [Epialtidae]
- Tymolus ingens, Takeda and Tomida 1984 [Cyclodorippidae]
- Tymolus itoigawai, Takeda and Tomida 1984 [Cyclodorippidae]
- Tymolus kamadai, Imaizumi 1952 [Cyclodorippidae]
- Typhlocarcinus, Stimpson 1858 [Pilumnidae]
- Typhlocarcinus galenoformis, Hu and Tao 1996 [Pilumnidae]
- Typhlocarcinus obtusus, Karasawa 1993 [Pilumnidae]
- Typhlocarcinus taiwanicus, Hu 1983 [Pilumnidae]
- Typhlocarididae, family, Annandale and Kemp 1913 [Decapoda]
- Typilobus alponensis, Beschin et al. 2009 [Leucosiidae]
- Typilobus belli, Quayle and Collins 1981 [Leucosiidae]
- Typilobus birshteinyi, Forster and Mundlos 1982 [Leucosiidae]
- Typilobus boscoi, Via 1959 [Leucosiidae]
- Typilobus corrodatus, Noetling 1885 [Leucosiidae]
- Typilobus johnfeni, Hu and Tao 1996 [Leucosiidae]
- Typilobus kishimotoi, Karasawa 1998 [Leucosiidae]
- Typilobus marginatus, Morris and Collins 1991 [Leucosiidae]
- Typilobus modregoi, Via 1959 [Leucosiidae]
- Typilobus moralejai, Muller 1993 [Leucosiidae]
- Typilobus obscurus, Quayle and Collins 1981 [Leucosiidae]
- Typilobus prevostianus, Desmarest 1822 [Leucosiidae]
- Typilobus sadeki, Withers 1925 [Leucosiidae]
- Typilobus semseyanus, Lorenthey 1898 [Leucosiidae]
- Typilobus trispinosus, Lorenthey 1909 [Leucosiidae]
- Typilobus unispinatus, Martins-Neto 2001 [Leucosiidae]
- Tyrynomma, Woods 1953 [Torynommidae]
- Uca antiqua, Brito 1972 [Ocypodidae]
- Uca galapagensis, Rathbun 1902 [Ocypodidae]
- Uca inaciobritoi, Martins-Neto 2001 [Ocypodidae]
- Uca maracoani, Latreille 1803 [Ocypodidae]
- Uca marinae, Dominguez-Alonso 2008 [Ocypodidae]
- Uca nitida, Desmarest 1822 [Ocypodidae]
- Uca pugnax, Smith 1870 [Ocypodidae]
- Uca subcylindrica, Stimpson 1862 [Ocypodidae]
- Ucididae, family, Stevcic 2005 [Decapoda]
- Ucinae, subfamily, Dana 1851 [Ocypodidae]
- Udora bigoti, Van Straelen 1924 [Decapoda]
- Udora brevispina, Munster 1839 [Decapoda]
- Udora gevreyi, Van Straelen 1923 [Decapoda]
- Udora koschnyi, Schweigert and Garassino 2004 [Decapoda]
- Udora minuta, Van Straelen 1923 [Decapoda]
- Udorella agassizi, A. Oppel 1862 [Udorellidae]
- Udorellidae, family, V. Van Straelen 1925 [Decapoda]
- Uhlias, Stimpson 1871 [Leucosiidae]
- Uhlias limbatus, Stimpson 1871 [Leucosiidae]
- Umalia, Guinot 1993 [Palaeocorystidae]
- Umalia guinotae, De Angeli and Beschin 2007 [Palaeocorystidae]
- Umalia misakiensis, Sakai 1937 [Palaeocorystidae]
- Uncina alpina, Schweigert 2003 [Uncinidae]
- Uncina ollerenshawi, Feldmann and Copeland 1988 [Uncinidae]
- Uncina pacifica, Schweigert 2003 [Uncinidae]
- Uncina posidoniae, Quenstedt 1851 [Uncinidae]
- Uncinidae, family, Berulen 1930 [Decapoda]
- Upogebia affinis, Say 1818 [Upogebiidae]
- Upogebia barti, Fraaije and Van Bakel 2006 [Upogebiidae]
- Upogebia boehmi, Glaessner 1930 [Upogebiidae]
- Upogebia clypeata, Carter 1898 [Upogebiidae]
- Upogebia controversa, Tribolet 1874 [Upogebiidae]
- Upogebia digitata, Robineau-Desvoidy 1849 [Upogebiidae]
- Upogebia hibiki, Ando and Karasawa 2010 [Upogebiidae]
- Upogebia imperfecta, Sakai 1982 [Upogebiidae]
- Upogebia lambrechtsi, Fraaije and Van Bakel 2006 [Upogebiidae]
- Upogebia meyeri, Robineau-Desvoidy 1849 [Upogebiidae]
- Upogebia miocenica, Garassino et al. 2009 [Upogebiidae]
- Upogebia mizunamiensis, Karasawa 1989 [Upogebiidae]
- Upogebia munsteri, Robineau-Desvoidy 1849 [Upogebiidae]
- Upogebia obscura, Von Meyer 1834 [Upogebiidae]
- Upogebia perarolensis, De Angeli and Messina 1992 [Upogebiidae]
- Upogebia scabra, Muller 1974 [Upogebiidae]
- Upogebia striata, Karasawa and Kishimoto 1996 [Upogebiidae]
- Upogebia tanegashimensis, Karasawa and Inoue 1992 [Upogebiidae]
- Urnalana, Galil 2005 [Leucosiidae]
- Urnalana parhaematostica, Galil 2005 [Leucosiidae]
- Utica haswelli, Wintle 1886 [Varunidae]
- Utica yarraensis, Wintle 1886 [Varunidae]
- Varunidae, family, H. Milne-Edwards 1853 [Decapoda]
- Varuninae, subfamily, H. Milne-Edwards 1853 [Varunidae]
- Vectis caseyi, Wright and Collins 1972 [Glaessneropsidae]
- Vectis echinorum, Wright and Collins 1972 [Glaessneropsidae]
- Vectis wrighti, Withers 1946 [Glaessneropsidae]
- Vegarthron, C. Schweitzer and R. Feldmann 2002 [Callianassidae]
- Vegarthron santiago, C. Schweitzer and R. Feldmann 2002 [Callianassidae]
- Venipaguridae, family, Collins 2010 [Decapoda]
- Venipaguroidea, superfamily, Collins 2010 [Decapoda]
- Venipagurus, Collins 2010 [Venipaguridae]
- Venipagurus mariae, Collins 2010 [Venipaguridae]
- Verrucarcinus cutifrontis, Frantescu 2010 [Glaessneropsidae]
- Verrucoides stenohedra, Vega and Cosma 2001 [Palaeoxanthopsidae]
- Verrucoides verrucoides, Collins and Rasmussen 1992 [Palaeoxanthopsidae]
- Vespridromites, C. Schweitzer and R. Feldmann 2010 [unclassified genus]
- Vespridromites dawsonensis, Bishop 1973 [Vespridromites]
- Vespridromites hearttailensis, Bishop 1985 [Vespridromites]
- Vespridromites scotti, Bishop 1983 [Vespridromites]
- Viacarcinus, Blow and Manning 1996 [Pilumnidae]
- Viacarcinus druidi, Blow and Manning 1996 [Pilumnidae]
- Viaophthalmus, Karasawa et al. 2008 [Portunidae]
- Viaophthalmus zariqueyi, Via 1959 [Portunidae]
- Viapinnixa, C. Schweitzer and R. Feldmann 2001 [Pinnotheridae]
- Viapinnixa alvarezi, Vega and Cosma 2001 [Pinnotheridae]
- Viapinnixa nodosa, Collins and Rasmussen 1992 [Pinnotheridae]
- Viapinnixa perrilliatae, Vega and Nyborg 2007 [Pinnotheridae]
- Viaplax, Karasawa and Kato 2003 [Euryplacidae]
- Viaplax urpiniana, Via 1959 [Euryplacidae]
- Vultocinidae, family, Ng and Manuel-Santos 2007 [Decapoda]
- Willemoesiocaris ovalis, Van Straelen 1923 [Polychelidae]
- Wilmingtonia, Wright and Collins 1972 [Bucculentidae]
- Wilmingtonia satyrica, Wright and Collins 1972 [Bucculentidae]
- Wilsonimaia schneiderorum, Blow and Manning 1996 [Majidae]
- Withersella crepitans, Wright and Collins 1972 [Torynommidae]
- Wongastacia, Hu 1984 [Nephropidae]
- Wongastacia taiwanica, Hu 1984 [Nephropidae]
- Wulaicarcinus, Hu and Tao 1996 [Decapoda]
- Wulaicarcinus micronus, Hu and Tao 1996 [Decapoda]
- Xaiva, MacLeay 1838 [Carcinidae]
- Xaiva bachmayeri, Muller 1984 [Carcinidae]
- Xandarocarcinus, Bishop 1988 [Xandarocarcinidae]
- Xandarocarcinus sternbergi, Rathbun 1926 [Xandarocarcinidae]
- Xanthias, Rathbun 1897 [Xanthidae]
- Xanthias maculatus, Forskal 1775 [Xanthidae]
- Xanthias miocenicus, Collins 2003 [Xanthidae]
- Xanthias similis, Hu 1983 [Xanthidae]
- Xanthilites bowerbanki, Bell 1858 [Tumidocarcinidae]
- Xanthilites interpunctatus, Schafhautl 1863 [Tumidocarcinidae]
- Xanthilites traubi, Forster 1970 [Tumidocarcinidae]
- Xanthinae, subfamily, MacLeay 1838 [Xanthidae]
- Xantho agassizi, Robineau-Desvoidy 1849 [Xanthidae]
- Xantho edwardsi, Sismonda 1846 [Xanthidae]
- Xantho hydrophilus, Herbst 1790 [Xanthidae]
- Xantho lovisatoi, Lorenthey 1907 [Xanthidae]
- Xantho moldavicus, Yanakevich 1977 [Xanthidae]
- Xantho vitiensis, Rathbun 1945 [Xanthidae]
- Xanthosia buchii, Reuss 1945 [Etyidae]
- Xanthosia buteonis, Wright and Collins 1972 [Etyidae]
- Xanthosia danielae, Collins and Breton 2009 [Etyidae]
- Xanthosia fischeri, A. Milne-Edwards 1862 [Etyidae]
- Xanthosia gibbosa, Bell 1863 [Etyidae]
- Xanthosia gracilis, Jakobsen and Collins 1997 [Etyidae]
- Xanthosia granulosa, McCoy 1854 [Etyidae]
- Xanthosia occidentalis, Bishop 1991 [Etyidae]
- Xanthosia robertsi, Secretan 1982 [Etyidae]
- Xanthosia sakoi, Karasawa et al. 2008 [Etyidae]
- Xanthosia semiornata, Jagt 1991 [Etyidae]
- Xanthosia similis, Bell 1863 [Etyidae]
- Xanthosia socialis, Van Bakel et al. 2005 [Etyidae]
- Xanthosia zoquiapensis, Fraaije et al. 2006 [Etyidae]
- Xanthosioides, Collins and Breton 2009 [Decapoda]
- Xanthosioides delicata, Fraaye 1996 [Decapoda]
- Xeinostoma, Stebbing 1920 [Cyclodorippidae]
- Xeinostoma antiqua, C. Schweitzer 2001 [Cyclodorippidae]
- Xeinostomatinae, subfamily, Tavares 1992 [Cyclodorippidae]
- Xenograpsidae, family, Ng et al. 2007 [Decapoda]
- Xenophthalmidae, family, Stimpson 1858 [Decapoda]
- Xenophthalmodinae, subfamily, Stevcic 2005 [unclassified subfamily]
- Xenophthalmus subitus, Morris and Collins 1991 [Xenophthalmidae]
- Xiphocarididae, family, Ortmann 1895 [Decapoda]
- Yongjicaris, Garassino and Yanbin 2002 [Palaemonidae]
- Yongjicaris zhejiangensis, Garassino 2002 [Palaemonidae]
- Zalasiinae, subfamily, Serene 1968 [Xanthidae]
- Zanthopsis bispinosa, Bell 1858 [Zanthopsidae]
- Zanthopsis dufourii, H. Milne-Edwards 1850 [Zanthopsidae]
- Zanthopsis errans, Woods 1922 [Zanthopsidae]
- Zanthopsis jacobi, Van Straelen 1925 [Zanthopsidae]
- Zanthopsis leachii, Desmarest 1822 [Zanthopsidae]
- Zanthopsis milleri, Roberts 1955 [Zanthopsidae]
- Zanthopsis minor, Stolley 1890 [Zanthopsidae]
- Zanthopsis multispinosa, Remy 1960 [Zanthopsidae]
- Zanthopsis nodosa, McCoy 1849 [Zanthopsidae]
- Zanthopsis peytoni, Stenzel 1934 [Zanthopsidae]
- Zanthopsis unispinosa, McCoy 1849 [Zanthopsidae]
- Zaops, Rathbun 1900 [Pinnotheridae]
- Zaops ostreus, Say 1817 [Pinnotheridae]
- Zosiminae, subfamily, Alcock 1898 [Xanthidae]
- Zosimus, Leach 1825 [Xanthidae]
- Zosimus aeneus, Linnaeus 1758 [Xanthidae]
- Zosimus jeneweni, Hu and Tao 2000 [Xanthidae]
- Zosimus poxus, Hu and Tao 1996 [Xanthidae]
- Zygastrocarcinus mendryki, Bishop 1982 [Homolidae]
- Zygopa, Holthuis 1961 [Albuneidae]
- Zygopa galantensis, De Angeli and Marangon 2001 [Albuneidae]