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.
Family Okeniidae Iredale & O'Donoghue, 1923
see Family Goniodorididae Adams & Adams, 1854
Subfamily Anculinae Pruvot-Fol, 1954
see Family Goniodorididae Adams & Adams, 1854
1 Genus Ancula Lovén, 1846
2 Genus Bermudella Odhner, 1941
3 Genus Spharia Risbec, 1928, orth. inval.
see Genus Spahria Risbec, 1928
4 Genus Trapania Pruvot-Fol, 1931