Widely distributedDistributed from Norway south to the Mediterranean
Lives on bottoms of coarse sand and gravel attached to rocks or other shells.
- There are two distinct muscle scars on the upper valve
- The muscle scars are furrowed
Fragile shell up to 4cm in length. It is white in colour sometimes with brown markings. The interior is glossy white. The surface is sculptured with 'fluted' ribs ? Wavey?