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Euomphalus pentangulatus

Taxonomy
Euomphalus pentangulatus was named by Sowerby (1814). Its type specimen is BMNH PG.134. It is the type species of Euomphalus.

Sister species
E. (Schizostoma) cirridioides, E. acuticosta, E. acutus, E. altus, E. angularis, E. anticostiensis, E. araneifer, E. archiaci, E. articulatus, E. basinodosus, E. biarmatus, E. bundtzeni, E. cassianus, E. catilliformis, E. catillus, E. cera, E. conradi, E. cornudanus, E. crotalostomus, E. dentatus, E. dissoluta, E. eurekensis, E. fairchildi, E. fenestralis, E. helicinus, E. illinoisensis, E. kaibabensis, E. latus, E. lineatus, E. mapingensis, E. minimus, E. minor, E. mohri, E. mongolicus, E. neapolitanus, E. nitidulus, E. nodulosus, E. oldhami, E. patulus, E. perspectivus, E. perversus, E. planodorsatus, E. planorbis, E. plummeri, E. radiatus, E. rotundus, E. schnurii, E. serratus, E. similis, E. simuloides, E. sinister, E. subtrigonalis, E. sulcatus, E. telleri, E. tenuistriatus, E. trigonalis, E. triliris, E. tuberculatus, E. utahensis, E. venustus (syn. Delphinula verneuili), E. verneuili, Paromphalus rotundus, Phymatifer coroniferus, Phymatifer peruvianus, Schizostoma africanum, Schizostoma fasciatum, Straparollus (Euomphalus) alaskensis, Straparollus (Euomphalus) asanoi, Straparollus (Euomphalus) brooksensis, Straparollus (Euomphalus) carbonarius, Straparollus (Euomphalus) elegans, Straparollus (Euomphalus) equalis, Straparollus (Euomphalus) glabribasis, Straparollus (Euomphalus) konobasis, Straparollus (Euomphalus) levicarinatus, Straparollus (Euomphalus) marginatiformis, Straparollus (Euomphalus) pancakensis, Straparollus (Euomphalus) parvulus, Straparollus (Euomphalus) parvus, Straparollus (Euomphalus) pernodosus, Straparollus (Euomphalus) pugilis, Straparollus (Euomphalus) qingyanensis, Straparollus (Euomphalus) subplanus, Straparollus (Euomphalus) sumatrensis, Straparollus (Euomphalus) uedai, Straparollus (Euomphalus) umbilicatus, Straparollus (Euomphalus) variabilis
Sister species lacking formal opinion data

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Synonymy list
YearName and author
1814Euomphalus pentangulatus Sowerby p. 97 figs. pl. 45
1941Euomphalus pentangulatus Knight p. 122 figs. pl. 73 f. 4a-d
1976Euomphalus pentangulatus Tassell p. 9
2011Euomphalus pentangulatus Wagner p. 4617

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