1.An edible clam(Venus mercenaria) of the Atlantic coast of North America, having a hard, rounded shell.
圆蛤、帘蛤一种产于北美洲大西洋沿岸的(美洲蛤帘蛤属)可食性蛤,长有坚硬的圆形甲壳
2.The hard clam Mercenaria mercenaria is distributed originally in the east coast US.
硬壳蛤原分布于美国东海岸,是美国最重要渔业贝类之一。