Bivalvia - Animalia
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. Bivalves as a group have no head and they lack some usual molluscan organs like the radula and the odontophore.
Bivalve - Mollusks, Aquatic, Filter Feeders | Britannica
WebSome 60 million years ago great adaptive radiation, notably in the Bivalvia, took place with a similar radiation in predatory crustaceans, starfishes, and snails. It is thought that such predation pressure effectively drove the Bivalvia underground with the resultant evolution of many antipredation devices on the shell—spines, ridges, and teeth—or of the habit of …
Class Bivalvia (Pelecypoda) | SeaNet
WebPododesmus macrochisma (Deshayes, 1839) Phylum Mollusca, Class Bivalvia, Subclass Pteriomorpha, Order Ostreoida, Family Anomiidae. Rock jingle; irregularly circular shell 8 cm diameter with irregular branching ribs; attached with right shell down by modified foot retractor muscle & calcified byssal threads projecting through distinctive hole in right …
Cretaceous Atlas of Ancient Life | Bivalvia
WebOverview. Bivalves include clams, oysters, scallops, and mussels. As their name implies, they have a shell composed of two valves that are connected at a hinge. Most bivalves are sessile, meaning that they do not move around much on the seafloor (an exception are scallops, which can “swim” short distances by flapping their valves together).
Mollusca: Bivalvia - University of California Museum of Paleontology
WebBivalvia. QUICK FACTS. # of Described Species: 10,000. First Appearance: Lower Cambrian. Habitats: Marine, estuarine, and freshwater. Shapes: Mostly with 2 shells, some are worm-like. Feeding Types: Mostly suspension feeders, some detritivors. Anyone that has ever slurped down an oyster, worn a pearl around their neck, or enjoyed the half ...
Bivalvia - GBIF
WebBivalvia Name Synonyms Asiphonidae Conchifera Lamellibranchiata Pelecypoda Homonyms Bivalvia Common names Bivalves in English Bivalves in English Clam in English Clam in English Clams in English Clams in English Muslinger in Danish bivalve in Portuguese bivalves in French ...
Mussels and Clams (Bivalvia) - Molluscs
WebShell. The generally accepted systematic name (in contrary to some others) of all mussels, clams and scallops - Bivalvia - the two-valve molluscs - refers to the most important character of all bivalves, that separates them from all other molluscs: The shell is separated into two pieces.
Bivalve - Wikipedia
WebBivalvele (Bivalvia) sau lamelibranhiatele (Lamellibranchiata sau Pelecypoda) cuprind o clasă de moluște marine și de apă dulce, care au corpuri delimitate de un înveliș format din două părți articulate comprimate lateral.Ele nu au nici cap, și, de asemenea, lipsește și radula.Bivalvele includ scoici, stridii, midii, etc., precum și numeroase familii care trăiesc …
Lucinidae (Bivalvia)–the most diverse group of chemosymbiotic molluscs ...
WebNov 24, 2006 · By the time of the publication of the Bivalvia volume of the Treatise on Invertebrate Palaeontology, Chavan (1969) had somewhat revised his ideas and divided the lucinid genera into four subfamilies, Lucininae, Myrteinae, Milthinae and Divaricellinae, with the Fimbriidae as a separate family.
(PDF) Chapter 8: Bivalvia. Species composition and richness of bivalve ...
WebPDF | On Jun 3, 2020, Gennady M. Kamenev published Chapter 8: Bivalvia. Species composition and richness of bivalve fauna along the NW Pacific | Find, read and cite all the research you need on ...
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