shell moderately inflated transversely elongate elliptical-ovate in outline. umbones anterior to midline of shell. anterodorsal and posterodorsal margins straightish and gently sloping. ventral margin broadly rounded.lunule lanceolate delicately outlined by a finely impressed line.outer surface smooth and glossy with fine slightly oblique undulating grooves crossing the shallow concentric growth marks and disappearing towarda anterior and posterrior ends of shell. hingenarrow with 3 cardinal teeth concentrated under the umbo of each valve but without lateral teeth. pallial sinus deep markedly ascending rounded in front.internal margins smooth. colour: outside of shell cream to light mauve with a net-like pattern of tan zigzag lines. umbones often more or less tinged light purple. lunule and escutcheon whitish with transverse streaks of purplish brown. interior white generally with a mauve hue in the umbonal covity.