Macrocallista is a genus of saltwater clams, marine bivalve mollusks in the family Veneridae, the Venus clams.Abbott, R.T. & Morris, P.A. A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies. New York: Houghton Mifflin, 1995. 69-70.
Species Species within the genus Macrocallista include: Macrocallista maculata (Linnaeus, 1758) – calico clam Macrocallista nimbosa (Lightfoot, 1786) – sunray venus clam
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