Habitat: Present in moderately shallow water Distribution: This species has been reported from North Carolina to the West Indies. Natural History Notes: Also known as Ctena orbiculata Depth: 2-3 m Characteristics: Codakia orbiculata measures 1 inch long. It is similar to C. orbicularis, but it differs by the shapes of the lunule and the ribs. The coloration is bright white on the exterior and the interior.