Codakia Scopoli, 1777

Genus Codakia Scopoli, 1777 View in CoL

Codakia Scopoli, 1777: 398 View in CoL .

Lentillaria Schumacher, 1817: 49 View in CoL . Type species: Venus punctata Linnaeus, 1758 View in CoL (monotypy).

Pexocodakia Iredale, 1930: 389 View in CoL . Type species: Lucina rugifera Reeve, 1850 View in CoL (original designation).

TYPE SPECIES. — Venus orbicularis Linnaeus, 1758 ( Chama , le codok Adanson, 1757) (by monotypy).

DIAGNOSIS. — Shells robust, medium to large, discoidal, flat to moderately inflated. Sculpture of numerous fine to broad low radial ribs crossed by fine commarginal lamellae, sometimes producing nodules at intersection with radial ribs. Lunule short, triangular to narrowly ovate, deep, strongly asymmetric, projecting from RV. Ligament large, set in deep resilifer. RV with two cardinal teeth, and a single, large anterior lateral tooth set close to cardinal teeth, posterior lateral teeth absent or indistinct. LV with 2 cardinals, anterior lateral 1 or 2, close to cardinal. Posterior lateral tiny or absent. Anterior adductor scar, long, detached from pallial line for about 2/3 of length. Shell usually white, internally with margin and hinge often rose-pink to red, within pallial line shell often yellow.