Astarte borealis (Schumacher, 1817)
Length to 51 mm. Adults usually 30-35 mm.
White. Periostracum very dark brown to almost black in adults; light brown in juveniles.
Infaunal mainly, on different types of sediments from silty to sandy sediments, often with gravel or stones.
From 2 to about 3000 m deep, but mainly in sublittoral.
Development without pelagic larvae.
The species is distributed from the Arctic south to Japan, the Aleutians, Massachusetts Bay and the northern North Sea.