Southwest Florida Shells

by José H. Leal

Family Arcidae

Anadara secticostata

(Reeve, 1844)

Cut-ribbed Ark

Shell size to 100 mm; shell large, oblong, slightly inequivalve. Sculpture of 30-38 curved radial ribs which increase in width toward margin. Each rib with faintly incised, longitudinal groove. Periostracum dark-brown. Color white.