Common Sand Dollar
Echinarachnius parma

Common sand dollars inhabit sandy shallows and offshore seabeds along the North Atlantic coast. They often burrow just beneath the sediment surface, using dense short spines to move and to sift detritus, diatoms, and tiny organic particles from the sand. The familiar flower-like pattern on the upper test contains petal-shaped areas used in gas exchange.
- Type
- Water / Burrow
- Conservation status
- NE
Growth chain
- ?
- ?
- Common Sand Dollar