Class: Gastropoda
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
Species Under: Class Gastropoda
Sub-structure
- Subclass: Opisthobranchia
- Order: Anaspidea
- Family: Aplysiidae
- Order: Cephalaspidea
- Family: Aglajidae
- Family: Aplustridae
- Family: Bullidae
- Family: Bullinidae
- Family: Diaphanidae
- Family: Gastropteridae
- Family: Haminoeidae
- Family: Hydatinidae
- Family: Ilbiidae
- Family: Philinidae
- Family: Runcinidae
- Family: Smaragdinellidae
- Order: Notaspidea
- Order: Nudibranchia
- Suborder: Aeolidina
- Family: Aeolidiidae
- Family: Babakinidae
- Family: Cumanotidae
- Family: Embletoniidae
- Family: Eubranchidae
- Family: Facelinidae
- Family: Fionidae
- Family: Flabellinidae
- Family: Glaucidae
- Family: Tergipedidae
- Suborder: Arminina
- Family: Arminidae
- Family: Charcotiidae
- Family: Dironidae
- Family: Heterodorididae
- Family: Madrellidae
- Family: Pinufiidae
- Family: Zephyrinidae
- Suborder: Dendronotina
- Family: Bornellidae
- Family: Dendronotidae
- Family: Dotidae
- Family: Hancockiidae
- Family: Lomanotidae
- Family: Marianinidae
- Family: Scyllaeidae
- Family: Tethydidae
- Family: Tritoniidae
- Suborder: Doridacea
- Family: Geitodorididae
- Family: Mandeliidae
- Suborder: Doridina
- Family: Actinocyclidae
- Family: Aegiridae
- Family: Akiodorididae
- Family: Chromodorididae
- Family: Conualevidae
- Family: Corambidae
- Family: Dendrodorididae
- Family: Discodorididae
- Family: Dorididae
- Family: Goniodorididae
- Family: Gymnodorididae
- Family: Hexabranchidae
- Family: Okadaiidae
- Family: Onchidorididae
- Family: Phyllidiidae
- Family: Polyceridae
- Suborder: Phanerobranchia
- Family: Vayssiereidae
- Order: Pleurobranchida
- Family: Pleurobranchidae
- Order: Sacoglossa
- Family: Caliphyllidae
- Family: Costasiellidae
- Family: Elysiidae
- Family: Hermaeidae
- Family: Juliidae
- Family: Limapontiidae
- Family: Oxynoidae
- Family: Plakobranchidae
- Family: Polybranchiidae
- Family: Volvatellidae
- Order: Umbraculida
- Family: Tylodinidae
- Family: Umbraculidae
- Subclass: Orthogastropoda
- Order: Neotaenioglossa
- Family: Epitoniidae
- Family: Lamellariidae
- Family: Naticidae
- Family: Velutinidae
- Subclass: Prosobranchia
- Family: Fissurellidae
- Order: Sorbeoconcha
- Family: Cassidae
- Family: Conidae
- Family: Cypraeidae
- Family: Cystiscidae
- Family: Ficidae
- Family: Marginellidae
- Family: Ovulidae
- Family: Triviidae