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 Gonatidae Hoyle, 1886
             1 Genus Gonatus Gray, 1849
             2 Genus Berryteuthis Naef, 1921
             3 Genus Gonatopsis Sasaki, 1920