The Atlantic Petricolid
The Atlantic Petricolid, Choristodon robustus (G.B. Sowerby I, 1834), is an inch-long clam belonging to the Venus Clam family Veneridae. The species is found from North Carolina to Brazil. Shells of other members of the Venus Clam family, such as the Southern Quahog, the Sunray Venus, and the Cross-barred Venus, to name a few, are commonly found along the beaches and bays of Southwest Florida. This is not the case with the shells of the Atlantic Petricolid: the species is pre