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 Dendronotina Odhner, 1934 [monotypic]
           Superfamily Dendronotoidea Sars, 1878 see Superfamily Tritonioidea Lamarck, 1809
             Family Phylliroidae Menke, 1830
               1 Genus Phylliroe Péron & Lesueur, 1810
               2 Genus Cephalopyge Hanel, 1905
               3 Genus Nectophyllirrhoe Thiele, 1931, orth. inval. see Genus Nectophyllirhoe Hoffmann, 1922