Lepidozona cooperi, commonly known as Cooper's chiton, is a common species of chiton found among intertidal rocks and boulders from Vancouver Island to Baja California.
At 30-40 mm, Lepidozona cooperi is a moderately large chiton. On the exterior surface, its valves are a dull olive green to gray color, while on the interior surface, they are sky blue. Its girdle generally has a rough texture from flat and deeply ridged scales. Its end valves have prominent beads arranged in radial ridges.
Like other mollusks, L. cooperi eggs hatch into planktonic larvae called trochophores. These will metamorphose directly into young adults without a veliger stage.