As Codakia pinchoti Pilsbry & Lowe:
The shell resembles the West Indian C. orbicularis (L.). It is slightly more ventricose (the diameter about half the length), the lunule shorter and deeper. Exterior white, the concentric sculpture less sharp than in C. orbicularis; at irregular intervals growth rests are rather conspicuous. Interior not punctate though sometimes somewhat roughened, white, with a coral pink submargin, broadening and becoming deep madder at the dor¬sal margin. Anterior laterals short, stronger, and nearer the cardinals than in C. orbicularis.
Length 58.5 mm., height 53 mm., diam. 31 mm. Panama City, on the reef off "French Plaza.”
This is much less compressed than C. distinguenda (Tryon) in which the concentric sculpture is far less strongly developed.