Skeletal System
Clam worms are segmented worms, and belong to the class polychaeta, meaning "a number of bristles." Each body segment has a pair of small "paddle-shaped" appendages (parapodia). Tiny hairs or bristles are embedded in the m. Clam worms have four pairs of tentacles, one pair of antennae, and one pair of fleshy lobes (palps) on the head area.