Bivalves have epifaunal or infaunal lifestyles but are largely filter feeders that couple the water column and benthos. bivalve in British English. The first thing that mig… adj. Growth takes place at the margins, although increases in thickness take place everywhere. ISBN 978-1-4200-6574-9. p. 77. 'Bi' means two and 'valve' is really 'valvae', which means 'leaves of a door'. Palaeos Metazoa: Mollusca: Bivalvia: Bivalve Glossary Archived 6 November 2008 at the Wayback Machine. That's because all bivalve animals have two shells that can open and close like doors. Typical condition in Cephalopods is already discussed in the biology of Sepia. A bivalve’s body includes a nervous system, a digestive system, and a heart. any mollusk, as the oyster, clam, scallop, or mussel, of the class Bivalvia, having two shells hinged together, a soft body, and lamellate gills. bivalve meaning: 1. a type of mollusc, such as an oyster, that has its body inside two connected shells: 2. having…. Published by Houghton Mifflin Harcourt Publishing Company. hemocoel. Also called lamellibranch, pelecypod. Any of various mollusks of the class Bivalvia, having a shell consisting of two halves hinged together. The group includes clams, cockles, oysters, and mussels. Bivalve definition, any mollusk, as the oyster, clam, scallop, or mussel, of the class Bivalvia, having two shells hinged together, a soft body, and lamellate gills. Definition of bivalve (Entry 2 of 2) : any of a class (Bivalvia synonym Pelecypoda) of typically marine mollusks (such as clams, oysters, or scallops) that have a 2-valved hinged shell, are usually filter … Created. “Affect” vs. “Effect”: Use The Correct Word Every Time. Foot: Definition. Incurrent and excurrent siphons are the tubular structures that burrowing bivalve molluscs, such as clams, use to feed, respire, reproduce and expel waste into the water, while the body of the bivalve remains buried beneath the surface of the sediment, where it is hidden from predators. bivalve adj adjective: Describes a noun or pronoun--for example, "a tall girl," "an interesting book," "a big house." Bivalve molluscs are abundant in marine and freshwater ecosystems and perform important ecological functions. Why Do “Left” And “Right” Mean Liberal And Conservative? Biology. Bivalves are a group of mollusks that includes clams, scallops, oysters, mussels, razor shells, cockles, venus shells, borers, trough shells and many others (some of which live in the deep sea and have yet to be identified).Bivalves are the second most diverse group of mollusks, ranking only behind gastropods in number of species. 2. Definition of bivalve in the Definitions.net dictionary. Also called lamellibranch, pelecypod. (bī′vălv′) n. Any of numerous freshwater and marine mollusks of the class Bivalvia, having a shell consisting of two hinged valves connected by a ligament, and including the clams, mussels, oysters, and scallops. In bivalve: Locomotion. bivalve definition in English dictionary, bivalve meaning, synonyms, see also 'bivalvate',bivalent',bivalence',bivalency'. Its name is a reference to the two shells, called valves , that protect its soft inner body parts. The name bivalve comes from Latin as most biological classifications do. the blood-filled space or body cavity of some invertebrates. © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Bivalve -ed: applied to mouth parts consisting of two parts or valves united to form a tube. Level. Branchial: (GR branchia = gills) The ventral or inhalant aperture. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Also called lamellibranch, pelecypod. Yes, enough to tell a bivalve when I see one: should like to have a ‘dozen fried’ before me now. “Monolith” vs. “Megalith”: What’s The Difference? Definition. All rights reserved. Clams, oysters, scallops, and mussels are bivalves. ... Additional Biology Flashcards . sponge's "skeleton" Term. ... and a radula in the oesophagus except Bivalvia, and ventral muscular foot for locomotion. The muscles mainly responsible for movement of the foot are the anterior and posterior pedal retractors. Bivalves are found in both freshwater and marine environments. (bī′vălv′) n. Any of numerous freshwater and marine mollusks of the class Bivalvia, having a shell consisting of two hinged valves connected by a ligament, and including the clams, mussels, oysters, and scallops. They retract the foot and effect back-and-forth movements.… Read More Also: pelecypod, lamellibranch. Created. Bivalvia , 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. Information and translations of bivalve in the most comprehensive dictionary definitions resource on the web. ... a tube through which water exits the mantle cavity of a bivalve. Having a shell consisting of two hinged valves. Level. The science of bivalve genetics dates back, primarily, to the mid-1970s and is surprisingly robust, given the small size of the bivalve biology community. 2. valve. (ˈbaɪˌvælv ) noun. https://medical-dictionary.thefreedictionary.com/bivalve, Any of numerous freshwater and marine mollusks of the class Bivalvia, having a shell consisting of two hinged valves connected by a ligament, and including the clams, mussels, oysters, and scallops. Branchiae: (Gr Branchia = gills) gills; respiratory organs for breathing the oxygen dissolved in water. ^ M. Alan Kazlev. 1. Where does the radula lie and what supports it? Birds and Nature Vol. The majority are filt… Mantle, in biology, soft covering, formed from the body wall, of brachiopods and mollusks; also, the fleshy outer covering, sometimes strengthened by calcified plates, of barnacles. Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012. The name bivalvecomes from Latin as most biological classifications do. They are voracious eaters, living principally on bivalve mollusks. Definition. (biology: having two valves) bivalvo/a adj adjetivo : Describe el sustantivo. bivalve, aquatic mollusk of the class Pelecypoda ("hatchet-foot") or Bivalvia, with a laterally compressed body and a shell consisting of two valves, or movable pieces, hinged by bivalve: The mantle and musculature The mantle lobes secrete the shell valves; the mantle crest secretes the ligament and hinge teeth. PLAY. Bivalves have gills instead of lungs, so when a bivalve opens its shell, water washes over the gills. 10/12/2005. Learn more. So essentially, the bivalves are those with a two sided shell that will open and close via a hinge, like a door. Bivalve ecology is a large field of study, but few comparisons among aquatic ecosystems or lifestyles have been conducted. 'Bi' means two and 'valve' is really 'valvae', which means 'leaves of a door'. Master these essential literary terms and you’ll be talking like your English teacher in no time. Examples of bivalves are clams, mussels, oysters, and scallops. Biome: An easily recognized, large, community with characteristic fauna, flora, substrate and climate. However, information on the diet of filter feeding bivalves in estuarine ecosystems is uncertain, as estuarine waters contain particulate matter from a range of sources and as bivalves are opportunistic feeders. Benthic bivalves are important links between primary production and consumers, and are essential intermediates in the flow of energy through estuarine systems. 9 No. the fluid that circulates through the body of an animal that has an open circulatory system. Are essential intermediates in the biology of Sepia classifications do have realized these... A reference to the two shells, called valves, that protect soft! To understand operations of a bivalve is an animal belonging to the phylum Mollusca, are!: Refers to person, place, thing, quality, etc for... 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