Source:http://linkedlifedata.com/resource/umls/id/C0542270
CSP: class in the order Mullusca; characterized by possessing two shells secreted by a mantle that extends in a sheet on either side of the body; possess two ctenida (in most cases) and a muscular foot; most bivalves are filter feeders, but some are scavengers or even predators; includes organisms such as clams, oysters, mussels, and scallops.,MSH: A class in the phylum MOLLUSCA comprised of mussels; clams; OYSTERS; COCKLES; and SCALLOPS. They are characterized by a bilaterally symmetrical hinged shell and a muscular foot used for burrowing and anchoring.