Fragile shell up to 1cm in length. It is coloured white both inside and out. The surface is sculptured with fine concentric lines.
Key identification features
- The right valve has one anterior lateral tooth.
- Shell surface is sculptured with concentric lines
- ?shape?
Ecology and behaviour
Lives in crevices ?attached? particularly in muddy areas.
Distribution and status
CommonDistributed from the north of Norway to the Mediterranean