gasteropod

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gasteropod

or

gastropod

any member of the class Gasteropoda in the phylum Mollusca, including MOLLUSCS such as slugs, snails, pteropods, limpets, winkles, whelks and sea slugs. Some forms lack a shell, but where a shell is present it is in the form of a single valve, often spiral. Marine, freshwater and terrestrial forms occur, and there is usually a distinct head, bearing a pair of tentacles and eyes.

gasteropod

References in periodicals archive ?
During the May cruise relative abundance of polychaetes diminished to <1%, while gasteropods represented >1%.
Use of a marine gasteropod Osilinus turbinatus in marine biomonitoring : application to heavy metals from the western Algerian coast.
echinoderms, gasteropods, Between wave base and spicules, calcareous storm base.