Phylum Mollusca Linnaeus, 1758 - molluscs
Subphylum Conchifera Gegenbauer, 1878
Class Gastropoda Cuvier, 1795 - snails and slugs
Subclass Orthogastropoda Ponder & Lindberg, 1995
Superorder Heterobranchia Burmeister, 1837
Order Opisthobranchia Milne-Edwards, 1848
Suborder Anaspidea P. Fischer, 1883 - sea hares
see Order Anaspidea Fischer, 1883
Superfamily Aplysioidea Lamarck, 1809
1 Family Aplysiidae Lamarck, 1809