Crassostrea is a genus of true oysters containing some of the most important oysters used for food.
The Ostreidae, the true oysters, include most species of molluscs commonly consumed as oysters. Pearl oysters are not true oysters, and belong to the order Pteriida.
Barbatia is a genus of "bearded" ark clams, marine bivalve mollusks in the family Arcidae, the ark clams.
Testacella is genus of small to medium-large, predatory, air-breathing, land slugs.
Mytilidae are a family of small to large marine and brackish-water bivalve molluscs in the order Mytilida. One of the genera, Limnoperna, even inhabits freshwater environments. Mytilidae, which contains some 52 genera, is the only extant family within the order Mytilida.
Marginellidae, or the margin shells, are a taxonomic family of small, often colorful, sea snails, marine gastropod molluscs in the clade Neogastropoda.
Cardita is a genus of marine bivalve molluscs in the family Carditidae.
Hipponix, common name hoof snails or hoof shells, is a genus of small sea snails with limpet-like shells, marine gastropod molluscs in the family Hipponicidae, the hoof snails. Many of the species in this genus have white shells.
Isognomon is a genus of marine bivalve mollusks which is related to the pearl oysters.
Argopecten is a genus of saltwater clams, or scallops, marine bivalve mollusks in the family Pectinidae.
Pycnodonte is a genus of extinct oysters, fossil marine bivalve mollusks in the family Gryphaeidae, the foam oysters or honeycomb oysters. Shells of species in this genus are found around the world in fossil shell beds from the Valanginian to the Early Pleistocene. They are a commonly found fossil in Cretaceous shellbeds of the Navesink Formation in New Jersey.
Semicassis is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the subfamily Cassinae within the family Cassidae, the helmet snails and bonnet snails.
Schilderia is a genus of sea snails, marine gastropod mollusks in the family Cypraeidae, the cowries.
Trigonostoma is a genus of sea snails, marine gastropod mollusks in the family Cancellariidae, the nutmeg snails.
Marginellinae is a taxonomic subfamily within the larger family of Marginellidae, a group of small sea snails, marine gastropod molluscs in the superfamily Volutoidea.
Brachidontes is a genus of mussels in the family Mytilidae.
Plicatula is a genus of saltwater clams, marine bivalve molluscs, known commonly as kitten's paws or kittenpaws in the family Plicatulidae.
Chama is a genus of cemented saltwater clams, marine bivalve molluscs in the family Chamidae, the jewel boxes.
Pseudochama is a species of bivalve mollusc in the family Chamidae.
Hyridella is a genus of bivalves belonging to the family Hyriidae.
