About Dinocardium robustum (Lightfoot), 1786
Dinocardium robustum (Lightfoot), 1786 is a species of cockle. Its shell grows to a length of 100–125 mm. This large, sturdy shell is obliquely ovate, with crenulate margins, and has around 32–36 rounded radial ribs that are visible on both the inner and outer surfaces. Its two valves are symmetrical (equivalve). The outer surface of the shell is usually creamy white, mottled with reddish-brown markings, while the interior of the shell is pinkish. This cockle uses its strong foot to burrow into substrate, and like most bivalves, it feeds by filtering plankton from water. This species occurs along the western Atlantic coast of North America, in the Gulf of Mexico, and in the Caribbean Sea.
