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

Shells of Trachycardium egmontianum can reach a size of about 50 millimetres (2.0 in).

These shells are oval, with 27 to 31 strong, prickly, radial ribs.

The glossy interior is pink, reddish or purplish.

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