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 Nudibranchia Cuvier, 1814 - "true" nudibranchs
         Suborder Doridina Odhner, 1934
           Superfamily Anadoridoidea Vaught, 1989, nom. inval.
             Family Polyceridae Alder & Hancock, 1845
               1 Genus Polycera Cuvier, 1817
               2 Genus Galacera Risso-Dominguez, 1960
               3 Genus Colga Bergh, 1880
               4 Genus Limacia Müller, 1781
               5 Genus Polycerella Verrill, 1880
               6 Genus Thecacera Fleming, 1828