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 Aeolidiina Eliot, 1910
           Superfamily Euaeolidioidea Odhner, 1968, nom. inval.
             Family Eubranchidae Odhner, 1934
               1 Subfamily Eubranchinae Odhner, 1934 see Family Eubranchidae Odhner, 1934
               2 Subfamily Cumanotinae Odhner, 1907 [monotypic] see Family Flabellinidae Bergh, 1889