Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Cephalopoda Cuvier, 1795 - cephalopods
     Subclass Coleoida Bather, 1888 see Subclass Coleoidea Bather, 1888
       Order Teuthida Naef, 1916
         Suborder Oegopsida d'Orbigny, 1845 see Suborder Oegopsina Orbigny, 1845
           Family Onychoteuthidae Gray, 1849
             1 Genus Onychoteuthis Lichtenstein, 1818
             2 Genus Ancistroteuthis Gray, 1849
             3 Genus Chaunoteuthis Appellöf, 1891
             4 Genus Kondakovia Filippova, 1972
             5 Genus Moroteuthis Verrill, 1881
             6 Genus Onykia Lesueur, 1821