Thin, but solid, shell up to about 2.5cm. Yellowish white with pink red or violet radiating rays. Exterior colouration repeated on the interior. Glossy with fine concentric ribs and radiating lines.Slight gape at each end. Siphons long and separate.
- No lateral teeth
- Posterior margin rounded
- No gape at posterior end of shell
Occassionally swims by flapping its valves. Burrows in coarse sand or gravel.
FrequentLofoten islands to the Mediterranean.