Malacostraca - Decapoda - Xanthidae

Synonym: Necrozius Milne-Edwards 1864

Parent taxon: Xanthidae according to R. L. Squires 1980

Sister taxa: Actaeinae, Bernuffius, Chlorodiella, Chlorodiellinae, Cymoinae, Etisinae, Euxanthinae, Haydnella, Kraussiinae, Liomerinae, Nogarolia, Polydectinae, Sculptoplax, Speocarcininae, Xandaros, Xanthinae, Xantho, Xanthopsis, Zalasiinae, Zosiminae

Subtaxa: Cyclocorystes aldersoni, Cyclocorystes pulchellus, Cyclocorystes vulgatus

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Type: Cyclocorystes pulchellus

Ecology: epifaunal carnivore