Rafinesque, 1815
Shell thick and strong, typically oval or circular, occasionally irregular and distorted, usually with bold, radiating ribs. Equivalve or inequivalve, one valve often flat or less concave than the other. Hinge line straight, produced as short, projecting ears on each side of the umbones. Equilateral, or inequilateral with anterior ears longer than posterior ones. Hinge line without teeth, although occasionally infolded along its edge to form articulating surfaces. Ligament internal, in a well-marked chondrophore. One adductor scar only.
Source: Hayward, 1990.
The following subtaxa of this family occur in the region:
Genus Aequipecten
Aequipecten opercularis
Genus Chlamys
Chlamys sulcata
Chlamys varia
Genus Crassadoma
Crassadoma pusio
Genus Hyalopecten
Hyalopecten similis
Genus Palliolum
Palliolum furtivum
Palliolum striatum
Palliolum tigerinum
Genus Pecten
Pecten maximus
Genus Pseudamussium
Pseudamussium septemradiatum