Gouldia minima

(Montagu, 1803)

Description (shell):
Shell subtriangular, almost equilateral, umbones on midline. Sculpture of numerous smooth, concentric ridges; growth stages clear. Lunule distinct, elongate, lanceolate; escutcheon ill-defined. Each valve with three cardinal teeth; two anterior laterals in the right valve, one in the left. Adductor scars and pallial line distinct; pallial sinus very small, represented by a shallow concavity immediately below posterior adductor scar.

Up to 15 mm long.

White to light brown, red or purple, often with streaks, spots or rays of darker pigment on a lighter ground. Periostracum thin, indistinct. Inner surfaces white, glossy.

Transparent greyish. The mantle is spotted with brown and fringed with short cylindrical points. The siphons are unequal in length and relatively short. The foot is large, tongue-shaped, adapted in burrowing.

Burrows in sandy mud, fine sand, or gravel; offshore to at least the edge of the continental shelf.

Ranges from Norway to the Mediterranean and West Africa (Distr. G. minima).