Mollusc shells

thumb|Georgian seed pearl gold ring

right|thumb|Seashells washed up on the beach in Valencia, Spain; nearly all are single valves of [[bivalve mollusks, mostly of Mactra corallina]] right|thumb|Hand-picked molluscan seashells (bivalves and [[gastropods) from the beach at Clacton on Sea in England]] thumb|A group of seashells, mostly bivalves in the family Pholadidae thumb|226x226px|Mixed shells on a beach in Venezuela thumb|Hermit crabs inhabiting marine gastropod shells that lived in the [[Persian Gulf]] thumb|A group of beach-worn sea snail shells that vary in size, form and pattern combination.

class of elephant tusk shell molluscs

exoskeleton of an animal in the phylum Mollusca

thumb|Apertural view of an adult queen conch Aliger gigas with the foot, eyes and snout visible thumb|A shell of a dead Florida crown conch Melongena corona inhabited by a [[hermit crab]]

musical instrument made from a seashell (conch)

thumb|The shell of Stenotrema florida, a land snail or terrestrial [[gastropod. The periostracum of this species has minute hairs, giving the snail a velvety feel]] thumb|A yellowish tan periostracum is visible on the lower two thirds of this juvenile (8 cm) valve of the marine bivalve Spisula solidissima thumb|The dark periostracum is flaking off of this dried-out Valve (mollusc)|valve of the "ocean quahog", marine [[bivalve Arctica islandica, from Wales]] thumb|Fresher valves of Arctica islandica with periostracum intact. Note that the periostracum is partially worn off on the umbo, this is

part of the body of a gastropod or snail

gastropod anatomy

hard shell of some spherical marine animals, notably sea urchins and microorganisms such as testate foraminiferans, radiolarians, and testate amoebae

folk myth that the sound of the ocean may be heard through seashells

anatomical term applied to the shell of molluscs

seashell

anatomical structure of certain sea snails