Freshwater bivalve - Wikipedia
Freshwater bivalves are one kind of freshwater mollusc, along with freshwater snails. They are bivalves that live in fresh water as opposed to salt water, which is the main habitat type for bivalves.
The majority of species of bivalve molluscs live in the sea, but in addition, a number of different families live in fresh water (and in some cases, also in brackish water). These families belong t…Wikipedia · Tekst onder CC-BY-SA-licentie- Geschatte leestijd: 9 min.
Bivalve shell - Wikipedia
WebA bivalve shell is part of the body, the exoskeleton or shell, of a bivalve mollusk. In life, the shell of this class of mollusks is composed of two hinged parts or valves. Bivalves are very common in essentially all aquatic locales, including saltwater, brackish …
Bivalve | Definition, Characteristics, Species, Classification, & Facts ...
Web18 mrt. 2024 · 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.
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- an aquatic mollusc which has a compressed body enclosed within a hinged shell, such as oysters, mussels, and scallops. Also called pelecypod or lamellibranch.
Bivalvia - Wikiwand
WebBivalvia, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bivalves have no head and they lack some usual molluscan organs, like the radula and the odontophore.
Characteristics of bivalves | Britannica
Webbivalve, 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. Most are completely enclosed by the shell, the two valves of which are joined by an elastic ligament, and by two sheets of tissue called the mantle.
Bivalves: Bivalvia | Encyclopedia.com
WebGEOGRAPHIC RANGE. Bivalves are found worldwide in freshwater and ocean habitats. HABITAT. All bivalves need fresh or sea water to breathe, reproduce, and feed. Ocean-dwelling species are found from the seashore to deep-sea habitats.
Bivalvia (Bivalves) | Encyclopedia.com
WebEvolution and systematics. The evolutionary history of bivalves is represented by an extensive fossil record. It begins in the Cambrian period (544–505 million years ago [mya]) with a laterally compressed stenothecid monoplacophoran (primitive single-shelled marine mollusk) as the most likely immediate ancestor.
Bivalve - New World Encyclopedia
WebBivalves are aquatic mollusks belonging to the class Bivalvia (or Pelecypoda ), a group that includes the familiar and economically important clams, oysters, scallops, and mussels. Bivalvia ("two valves") refers to the fact that most members of this group have two-part calcareous shells, or valves, that are hinged and more or less symmetrical.
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