Solid, almost oval, shell up to about 6.5cm in length. Yellowish white or fawn in colour sometimes with pink or brown radiating streaks. Inside of shell white at the margins and often orange towards the centre. Deep, tongue shaped, pallial sinus. Sculpture of pronounced concentric ridges on valve surface.
- Sculpture of think concentric ridges
- Margin of pallial sinus not confluent with pallial line
- Arcopella balaustina has a thinner more fragile shell
Burrows in muddy to coarse sand and shell gravel where it feeds on organic detritus picked up through the siphon.
Found from the Norwegian Sea to the Iberian Peninsula.