Bivalvia (/ baɪˈvælviə /) or bivalves, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of aquatic molluscs (marine and freshwater) that have laterally …

Bivalve, (class Bivalvia), any of more than 15,000 species of clams, oysters, mussels, scallops, and other members of the phylum Mollusca characterized by a shell that is divided from front …

A bivalve shell is the enveloping exoskeleton or shell of a bivalve mollusc, composed of two hinged halves or valves. The two half-shells, called the "right valve" and "left valve", are joined …

2024年6月16日 · Bivalve mollusks (e.g., clams, oysters, mussels, scallops) have an external covering that is a two-part hinged shell that contains a soft-bodied invertebrate. A roughfile …

2024年5月31日 · Bivalves are a group of freshwater and marine mollusks with bilaterally symmetric and laterally compressed bodies encased in a characteristic two-part shell. They …

Bivalves are most easily recognized by their two shells (hence "bi-valv-ia"). Their shells are comprised of a pair of laterally-compressed hinged valves and the pallial cavity surrounds the …

2024年8月20日 · Bivalves, also known as lamellibranchs or pelecypods, are a class of mollusks distinguished by their two-part shell, which joins dorsally and encloses and protects their body. …

bivalve, Any member of the mollusk class Bivalvia, or Pelecypoda, characterized by having a two-halved (valved) shell. Clams, cockles, mussels, oysters, scallops, and shipworms are bivalves. …

Bivalve - Mollusk, Shell, Filter Feeder: The bivalve shell is made of calcium carbonate embedded in an organic matrix secreted by the mantle. It has a simple nervous system; the head is …

2001年1月26日 · A bivalve closes its shells by contracting its powerful adductor muscles. Commonly there are two, an anterior and a posterior one, but in some taxa (such as scallops) …