External Morphology

Features of shell and size
Smooth and firm hard shell, medium to large (Height up to 53 mm and length up to 55 mm), it is subcircular.
Sculpture low radial ribs of variable width, anterior and posterior margins are narrower and central part of shell are often sparse.
Ribs crossed by numerous fine and sometimes streams of commarginal lamellae are found to reconnect.
Anterior and posterior dorsal areas are raised to reflect a finely nodular sculpture.

Colors
White with umbonal areas tinged dark pink

Shape
It comes with a short crescent-shape, or heart shaped, deeply impressed and asymmetrical.

Key features found on valves

Right Valve	Left Valve
2 cardinal teeth	1 cardinal teeth
large anterior lateral close to cardinals	anterior lateral close to cardinal
vestigial posterior lateral	low posterior lateral