Up to about 16mm and almost round. White, yellow, brown, red or purple often with spots streaks or rays of deeper shades. Pallial sinus is a small indentation of the pallial line. The animal is greyish in colour and the mantle is spotted with brown.
Key identification features
- Pallial sinus is very small indentation
- Right valve with two anterior lateral teeth
Ecology and behaviour
Shallow burrowing filter feeder. Found in sandy mud and fine/medium gravel.
Distribution and status
Common
From Norwegian Sea to Iberian Peninsula and into the Mediterranean and Black Sea.