Dimyidae is a family of extremely flattened, small (<1 cm), pleurothetic, relatively rare marine bivalvemolluscs in the order Pectinida inhabiting the deeper regions of continental shelves from the Caribbean to Japan. They are sometimes called dimyarian oysters. Unlike other ostreoids, the dimyarian oysters attach themselves to a substrate via their right (rather than left) valves.[1] They are related to the scallops and other oysters.
^C. M. YONGE. ON THE DIMYIDAE (MOLLUSCA:BIVALVIA) WITH SPECIAL REFERENCE TO DIMYA CORRUGATA HEDLEY AND BASILIOMYA GOREAUI BAYER J. Mollus. Stud. (1978) 44 (3): 357-375
Moore, D.R., 1969. A New Genus and Species of Dimyidae from the caribbean Coast of Mexico. Journal de Conchyliologie 107: 137-141