Widely distributedDistributed from Norway south to the Bay of Biscay.
Lives on bottoms of coarse sand and gravel attached to rocks or other shells.
- Two muscle distinct scars on the upper valve.
- The muscle scars are not furrowed
Fragile shell up to 1.5cm in length.The outside is white in colour tinged with pink. The inisde is white and glossy. The surface is sculptured with irregular concentric rings.