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.
             1 Family Corambidae Bergh, 1871
             2 Family Goniodorididae Adams & Adams, 1854
             3 Family Okeniidae Iredale & O'Donoghue, 1923 see Family Goniodorididae Adams & Adams, 1854
             4 Family Onchidorididae Gray, 1827
             5 Family Triophidae Odhner, 1941 see Tribe Triophini Odhner, 1941
             6 Family Aegiretidae Fischer, 1883
             7 Family Polyceridae Alder & Hancock, 1845
             8 Family Gymnodorididae Odhner, 1941
             9 Family Vayssiereidae Thiele, 1931 see Family Okadaiidae Baba, 1930