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 Flabellinidae Bergh, 1889
               1 Genus Calmella Eliot, 1910
               2 Genus Chlamylla Bergh, 1886
               3 Genus Coryphella Gray, 1850
               4 Genus Flabellina McMurtrie, 1831
               5 Genus Flabellinopsis MacFarland, 1966
               6 Genus Paracoryphella Miller, 1971
               7 Genus Rioselleolis Ortea, 1979
               8 Genus Samla Bergh, 1900
               9 Genus Tularia Burn, 1966