Dimyidae is a family of extremely flattened, small (<1 cm), pleurothetic, relatively rare marine bivalve molluscs in the order Pectinida inhabiting the deeper regions of continental shelves from the Caribbean to Japan. They are sometimes called dimyarian oysters. Unlike other ostreids, the dimyarian oysters attach themselves to a substrate via their right (rather than left) valves.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 They are related to the scallops and other oysters.
Dimyidae species live in deep sea areas, often on rocks and the sea floor. Their habitat examines how solid surfaces like rocks allow them to avoid being swept away, and the low-profile shell combined with the deep sea habitat protects them from predators.
Genera Genera within Dimyidae include: Basiliomya Bayer 1971 Basiliomya goreaui F. M. Bayer, 1971 Dimya Roualt 1848 Dimyella Moore 1969 Dimyella starcki D. R. Moore, 1969
References Waller, T. R. (2012). Morphology, Phylogeny, and Systematic Revision of Genera in the Dimyidae (Mollusca, Bivalvia, Pteriomorphia). Journal of Paleontology, 86(5), 829–851. https://doi.org/10.1666/12-004.1 Moore, D.R., 1969. A New Genus and Species of Dimyidae from the caribbean Coast of Mexico. Journal de Conchyliologie 107: 137-141