Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Opisthobranchia Milne-Edwards, 1848 - opisthobranchs see Order Opisthobranchia Milne-Edwards, 1848
       Order Cephalaspidea Fischer, 1883
         Superfamily Acteonoidea d'Orbigny, 1843
           Family Acteonidae d'Orbigny, 1843, nom. protect. - bubble shells
             1 Subfamily Acteoninae d'Orbigny, 1843
             2 Subfamily Liocarininae Pacaud & Le Renard, 1995, orth. inval. [monotypic] see Subfamily Liocareninae Wenz, 1938