Marine mollusk shells that are familiar to beachcombers and thus most likely to be called "seashells" are the shells of marine species of bivalves (or clams), gastropods (or snails), scaphopods (or tusk shells), polyplacophorans (or chitons), and cephalopods (such as nautilus and spirula).

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Keywords: asia, beaches, bed, bivalves, cephalopods, chitons, clams, gastropods, images, india, indian, lined, marine, mollusk, nautilus, period, polyplacophorans, scaphopods, sea, seashells, shells, shore, side, snails, species, spirula, tusk