Brittle shell up to about 2cm in length. Interior and exterior of shell white and polished. Sculpture of fine concentric rings. Deep pallial sinus which is partially confluent with the pallial line.
- Beaks clearly in one half of the shell
- Broadly oval in outline
Long siphons allow this species to burrow relatively deeply for its size (about 7cm down) in mud, silty sand and soft muddy gravel. Feeds on organic detritus picked up through the siphon. Can occur in high densities.
CommonFound from the Nowegian Sea and the Baltic down to the Iberian Peninsula and into the Mediterranean and Black Seas.