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Chapter contents: Class Bivalvia: Introduction and Morphology – 1. Bivalve Phylogeny and Classification ← – 2. Bivalve Ecology and Paleoecology – 3. Evolutionary History of Bivalves – 4. References and Further ReadingOverview Efforts at bivalve classification and phylogenetic analysis have traditionally been based on prominent morphological features such as gill structure, stomach ...
Nov 21, 2023 · A bivalve is an animal belonging to the class Bivalvia. Its name is a reference to the two shells, called valves , that protect its soft inner body parts. The valve is opened and closed using a ...
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Oct 31, 2023 · Class Bivalvia. Bivalvia is a class of marine and freshwater molluscs with laterally compressed bodies enclosed by a shell in two hinged parts. Bivalves include clams, oysters, mussels, scallops, and numerous other families of shells. The majority are filter feeders and have no head or radula.
Aug 26, 2020 · Bivalves are known by a variety of common names, depending on species, or species group; Clams, Cockles, Fan Shells, Mussels, Oysters, Scallops and Shipworms are all species of bilvalves. Bivalves are aquatic molluscs that possess two shells that are connected by a hinge. The two shells are commonly referred to as valves.
Bivalve - Mollusks, Aquatic, Filter Feeders: The burrowing, filter-feeding mode of life restricts bivalves to aquatic environments. Mostly found in coastal seas, their diversity is high in large rivers with suitable deltaic habitats and where the continental shelf is broad. Most bivalves are primary consumers. Locomotion is only used when dislodgement occurs or to escape predation.
Bivalvia. Em biologia, bivalvia (do latim bi, duplicado + valva, porta de duas folhas, valva) anteriormente Pelecypoda e Lamellibranchia, é a classe do filo Mollusca que inclui os animais aquáticos popularmente designados por bivalves. Estes organismos caracterizam-se pela presença de uma concha carbonatada formada por duas valvas.
The molluscan Class Bivalvia (Class Pelecypoda or Lemellibranchiata of many authors) includes the clams, oysters, scallops, and similar groups, and is characterized by laterally paired external calcareous shells which enclose the soft parts, a highly modified foot which is large and adopted for burrowing in many forms, paired sheath-like gills, and lack of a functional head.
