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 Facelinidae Bergh, 1889
               Subfamily Facelininae Bergh, 1889
                 1 Genus Facelina Alder & Hancock, 1855
                 2 Genus Antionetta auctt., orth. inval. see Genus Antonietta Schmekel, 1966
                 3 Genus Caloria Trinchese, 1888
                 4 Genus Facelinopsis Pruvot-Fol, 1954
                 5 Genus Phidiana Gray, 1850
                 6 Genus Pruvotfolia Tardy, 1970
                 7 Genus Rolandia Pruvot-Fol, 1951, nom. illeg.