Trachycardium egmontianum

Trachycardium egmontianum, the Florida prickly cockle, is a species of bivalve mollusc in the family Cardiidae.

Description
Shells of Trachycardium egmontianum can reach a size of about 50 mm. These shells are oval, with 27 to 31 strong, prickly, radial ribs. The external surface is whitish to tawny-gray or pale purplish, with yellow, brown or purplish pathes. The glossy interior is pink, reddish or purplish.

Distribution
This species can be found along the Atlantic coast of North America, ranging from North Carolina to Florida.