Shell typical for its valves globosity. Roundish in form, rather brittle, umbo bent anteriorly where it makes a sinus through the dorsal margin, broader in the juvenile specimens, rounded posteriorly. The hinge has no teeth and the ligament is inserted in a groove. Internal ventral margin smooth. The colour pattern can change from dirty white to light yellow, sometimes with soft brownish shades. The average measures reach 13-14 mm in diametre.

Habitat: it prefers sandy bottoms.
Distribution: common enough all over the Mediterranean.