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 …

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 …

Bivalvia (/ b aɪ ˈ v æ l v i ə /) or bivalves, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of aquatic molluscs (marine and freshwater) that have laterally …

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 …

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 …

External Clam Shell Anatomy 1. Left valve or shell 2. Anterior or head 3. Posterior or tail 4. Dorsal or upper 5. Ventral or lower 6. Umbo (“beak”) •Oldest part of the shell 7. Growth ring Northern …

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 …

Bivalve - Anatomy, Mollusk, Shells: Bivalves have a symmetrical body that includes a mantle cavity, foot (where present), gills, anus, urogenital pores, and inhalant and exhalant chambers. …

2024年4月18日 · Check out this background information on parts of a bivalve shell to help you identify shells to that species level identification! Bivalves have two shells that are often …

Bivalves are aquatic mollusks belonging to the class Bivalvia (or Pelecypoda), a group that includes the familiar and economically important clams, oysters, scallops, and mussels. …