Shell solid up to 2.5cm in length. Very colourful often showing shades of white, yellow, pink, purple, red or brown with rays or streaks. Valve surface sculptured with a few solid broad ridges. Siphons are united but split at the tips.
- Inner margin crenulate
- A few very well defined broad flat concentric rings on the valve surface
Shallow burrower in gravel (sometimes mixed with sand or mud). Has been recorded creeping into crab pots.
Common. Widely distributed.
Recorded from the North of Norway to the Iberian Peninsula and the Mediterranean.