Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Cephalopoda Cuvier, 1795 - cephalopods
     Subclass Coleoida Bather, 1888 see Subclass Coleoidea Bather, 1888
       Order Teuthida Naef, 1916
         Suborder Myopsida see Suborder Myopsina d'Orbigny, 1841
           Family Loliginidae Rafinesque, 1815
             Genus Loligo Lamarck, 1798 - long-finned squid
               1 Subgenus Doryteuthis Naef, 1912
               2 Subgenus Heterololigo Natsukari, 1984
               3 Subgenus Nipponololigo Natsukari, 1983
               4 Subgenus Photololigo Natsukari, 1984