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see MolluscaMollusca
, taxonomic name for the one of the largest phyla of invertebrate animals (Arthropoda is the largest) comprising more than 50,000 living mollusk species and about 35,000 fossil species dating back to the Cambrian period.
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(invertebrate zoology)
Any member of the Mollusca.


(US), mollusk
any invertebrate of the phylum Mollusca, having a soft unsegmented body and often a shell, secreted by a fold of skin (the mantle). The group includes the gastropods (snails, slugs, etc.), bivalves (clams, mussels, etc.), and cephalopods (cuttlefish, octopuses, etc.)
References in periodicals archive ?
Called giant shipworms (Kuphus polythalamia), the existence of these mollusks have been known to the scientific community since the 18th century.
Although a female-biased sex ratio appears to be typical for many species of Unionicola (Mitchell 1965; Davids 1973; Baker 1987), there is little known about the impact of this population structure on the reproductive biology of Unionicola mollusk mites.
In 1903, Stanton reported six new species of freshwater mollusks from fluvial deposits of the Kootenai Formation that were "certainly not older than the Lower Cretaceous" (1).
Washington, January 30 ( ANI ): Ocean-based mollusks - a category of animal that includes snails, clams and squid - and their bacterial companions could be the source of next class of powerful medications, researchers have suggested.
To create a model of the mollusk, researchers cut the fossil into 1,300 slices and took a digital picture of each piece.
Monitoring and control of macrofouling mollusks in fresh water systems, 2d ed.
Abalone fishing is a strictly regulated activity under Omani law and is permitted only during two months during the year - November and December when the mollusk is thought to be fully grown.
Answers: shared characteristics, carnivores, mollusk
ABSTRACT: Freshwater mollusks figure prominently in the diets of humpback whitefish (Coregonus pidschian) and broad whitefish (C.
These agencies and organizations share the tasks of 1) surveying streams to locate and assess targeted mollusk populations, 2) collecting broodstock for culture activities, 3) identifying stream segments for potential population restoration activities, 4) conducting life history research, 5) developing propagation technologies, and 6) funding the various aspects of the propagation and larger recovery program.