Southwest Florida Shells with Emphasis on Sanibel & Captiva
José H. Leal
Dwarf Surf Clam
Shell size to 18 mm; shell small, triangular, inflated. Umbones on center of valve. Shell surface smooth, except for radial ridge on posterior region. Hinge with small chondrophore. Color white to yellowish-white. May resemble juvenile surf clam, Spisula raveneli.