Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Cephalopoda Cuvier, 1795 - cephalopods
     Subclass Coleoida Bather, 1888 see Subclass Coleoidea Bather, 1888
       Order Octopoda Leach, 1817 - octopuses
         Suborder Cirrata Grimpe, 1917 see Suborder Cirrina Grimpe, 1916
           Family Cirroteuthidae Keferstein, 1866
             Genus Cirroteuthis Eschricht, 1838
               Subgenus Cirroteuthopsis Grimpe, 1920 see Genus Opisthoteuthis Verrill, 1883