Valves sculptured with about fifty bifurcating, flat, radiating riblets, separated by very fine grooves. The girdle is covered with small scales and greyish brown in color, often with yellowish blotches or bands. This one inch elongate chiton has broad valves which are mostly light greyish brown. They can be variously blotched with white, cream, pink, reddish chestnut or blackish brown. Some specimens are olivaceous mottled with white.
Valve surface is evenly microgranulose, sculptured with numerous weak, glossy, radiating riblets.
The girdle is scaly and colored in alternating yellowish and greyish or brownish bands. This one inch chiton is elongate oval in shape and moderately elevated. Central areas minutely pitted in a chevron-like or quincuncial pattern. Lateral areas slightly raised, clearly marked and sculptured with flat, radiating costae. The girdle is narrow and colored like the valves, sometimes with alternating bands of lighter and darker tones.