Polyplacophora The body of a chiton is covered by a shell that consists of a series of eight symmetrical, overlapping plates. A chiton can roll itself up into a ball, exposing only the hard shell, when it feels threatened. It moves using an oval, footlike appendage. The chiton also uses the foot to cling to rocks.
Chitons feeds upon seaweed and algae.
Many types of chitons are found attached to rocks at low tide, but they are more drab colors than those found in the subtidal region. 1993-1995 Microsoft Corporation.