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 Cranchiidae Prosch, 1847
             Subfamily Cranchiinae Prosch, 1847
               1 Genus Cranchia Leach, 1817
               2 Genus Drechselia Joubin, 1931
               3 Genus Leachia Lesueur, 1821
               4 Genus Liocranchia Pfeffer, 1884