Valve (mollusc) - Wikipedia
A valve is each articulating part of the shell of a mollusc or another multi-shelled animal such as brachiopods and some crustaceans. Each part is known as a valve or in the case of chitons, a "plate". Members of two classes of molluscs, the Bivalvia (clams) and the Polyplacophora (chitons), have valves.
bivalve - Encyclopedia Britannica
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 to back into left and right valves. The valves are connected to one another at a hinge.
Bivalves parts, Fossils, Kentucky Geological Survey, University of Kentucky
2023年1月5日 · Some interior parts of bivalve shells shown in modern bivalves (clams, mussels, and scallops) with different shapes, which can be preserved in fossil bivalves. Examples are Little neck clam (Mercenaria mercenaria), Common mussel (Mytilus edulis), and Rough scallop (Aequipecten muscosus).
Clam | Anatomy, Types, Habitat, Mollusk, Bivalve & Marine Life
6 天之前 · True clams, in the strict sense, are bivalves with equal shells closed by two adductor muscles situated at opposite ends of the shell, and with a powerful, muscular, burrowing foot. Clams characteristically lie buried from just beneath the surface to depths of about 0.6 metre (2 feet). They rarely travel over the bottom as do some other bivalves.
Clam - Wikipedia
A clam's shell consists of two (usually equal) valves, which are connected by a hinge joint and a ligament that can be internal or external. [6] The ligament provides tension to bring the valves apart, whilst one or two adductor muscles can contract to close the valves. Clams also have kidneys, a heart, a mouth, a stomach, and a nervous system.
Bivalvia - Wikipedia
Common bivalves include clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. Majority of the class are benthic filter feeders that bury themselves …
Clam Anatomy - Parts of a Clam With Diagram - AnimalWised
The shell of the clam is made up of two valves, each of which is joined together by a hinge. These valves are composed of concentric layers of calcium carbonate, providing a robust and protective structure. Since it is known for its valves, the shell is scientifically known as a valve.
External Clam Shell Anatomy 1. Left valve or shell 2. Anterior or head 3. Pi liPosterior or tail 4. Dorsal or upper 5. Vnt l lVentral or lower 6. Umbo (“beak”) • Oldest part of the shell 7. Growth ring Northern hard clam, Mercenaria mercenaria
Clam Review - SERC
This Cornell University website features a virtual clam dissection. Four high-resolution images � intact clam, inner surface of valve, overview of clam with left valve removed, and overview of ...
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 hard clam, Mercenaria mercenaria