Brittle shell up to 1.5cm in length. The shell is coloured dirty white or cream obscured by brown periostracum. The inside of the the shell is white. The surface of the shell is sculptured with concentric lines.
Key identification features
- Left valve has a single lateral tooth in front of the chondophore
- Right valve has a single cardinal tooth in front of the chrondophore
Ecology and behaviour
Burrows into mud. The species is carnivorous and feeds by sucking in food with an adapted muscular gill. It probably feeds mainly on dead crustaceans.
Distribution and status
RareDistributed from the north of Norway to the Mediterranean.