mollusc


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Related to mollusc: molluscum contagiosum

mollusc

(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 ?
Fine microstructural detail can be preserved in calcium phosphate internal moulds and replacements of the shells of Cambrian molluscs (Runnegar 1985).
This finding is consistent with a mollusc assemblage that was harvested frequently by 'range-limited' gatherers employing an encounter strategy.
The exploitation of shellfish is largely dependent on the capture and production of molluscs.
During this time he corresponded with Keppel Barnard at the South African Museum, the then authority on South African marine molluscs, and he also regularly visited Dolf van Bruggen who was at the time curator of the newly established Port Elizabeth Oceanarium.
Who is this M25-encased gastropod who can't tell his molluscs from his lamellibranchs?
And Mr Farren was told the mollusc could date from the Jurassic period.
Inasmuch as abiotic factors regulating freshwater mollusc distribution are briefly mentioned in the last chapters, effects from environmental variables due to xenobiotics and human activities in general, were neglected.
The mollusc lives embedded vertically in the bottom sediments (usually mud or muddy sand), and it is attached there by a net of byssus threads (Yonge 1953, Purchon & Purchon 1981).
If so, you may be disappointed that the approaches are entirely embedded in well-known traditional frameworks involving species' ecologies, ecological groups (nuanced, since 1991, by 'taxocenes') and mollusc assemblage zones.
If the mollusc is unable to get rid of the irritant, as part of its defence mechanism it produces conchiolin (an organic glue) and nacre (calcium carbonate crystallised in the form of aragonite).
Boring polychaetes frequently infest the shells of aquacultured mollusc species.