Bulla is a genus of medium to large hermaphrodite sea snails, shelled marine opisthobranch gastropod molluscs. These herbivorous snails are in the suborder Cephalaspidea, headshield slugs, and the order Opisthobranchia.
Turritella is a genus of medium-sized sea snails with an operculum, marine gastropod mollusks in the family Turritellidae.
Xenophora, commonly called carrier shells, is a genus of medium-sized to large sea snails, marine gastropod mollusks in the family Xenophoridae, the carrier snails or carrier shells. The genus Xenophora is the type genus of the family Xenophoridae.
Muricopsis is a genus of small predatory sea snails, marine gastropod mollusks in the rock snail family, Muricidae.
Spisula is a genus of medium-sized to large marine bivalve mollusks or clams in the subfamily Mactrinae of the family Mactridae, commonly known as surf clams or trough shells.
Neritopsidae is a family of small sea snails and freshwater snails in the clade Cycloneritimorpha.
Delphinulopsidae is an extinct taxonomic family of fossil sea snails, marine, gastropod mollusks.
Anomia is a genus of saltwater clams, marine bivalve mollusks in the family Anomiidae. They are commonly known as jingle shells because when a handful of them are shaken they make a jingling sound, though some are also known as saddle oysters.
Sveltia is a genus in the subfamily Cancellariinae of the nutmeg sea snails with an extensive fossil range.
Demoulia is a genus of sea snails, marine gastropod mollusks in the family Nassariidae, the Nassa mud snails or dog whelks.
Subcancilla is a genus of sea snails, marine gastropod mollusks in the subfamily Isarinae of the family Mitridae.
Clelandella is a genus of sea snails, marine gastropod mollusks in the family Trochidae, the top snails.
Schilderia is a genus of sea snails, marine gastropod mollusks in the family Cypraeidae, the cowries.
Zonaria is a genus of sea snails, marine gastropod molluscs in the subfamily Zonariinae of the family Cypraeidae, the cowries.
Trigonostoma is a genus of sea snails, marine gastropod mollusks in the family Cancellariidae, the nutmeg snails.
†Pseudomelania is an extinct genus of fossil sea snails, marine gastropod mollusks in the family Pseudomelaniidae.
Crassadoma is a genus of rock scallops, marine bivalve molluscs in the family Pectinidae. It is monotypic, the only species being Crassadoma gigantea, the rock scallop, giant rock scallop or purple-hinge rock scallop. Although the small juveniles are free-swimming, they soon become sessile, and are cemented to the substrate. These scallops occur in the eastern Pacific Ocean.
Glycymeris, common name the bittersweet clams, is a genus of saltwater clams, marine bivalve molluscs in the family Glycymerididae.
Gigantopecten is a genus of fossil scallops, marine bivalve molluscs in the family Pectinidae, the scallops.
Archimediella is a genus of sea snails, marine gastropod mollusks in the family Turritellidae.
