conches, snails, slugs and more. The animal has eyes on stalks, The smaller pair of tentacles is used for the sense of smell and touch. Of course there is a large shell in the animal's back.
A bivalve - clam, scallop and oysters fall into this category. These animals have shells that are in two halve or two valves. The "foot" sticks out and is what the animal uses to dig or to move.
tusk - a tapering shell shaped like a tusk with openings at both ends of the shell.
Last up was the chiton with a shell composed of eight separate plates.
can be found here.