Clam chowders have — as the name suggests — clams and fish stock.

蛤蜊海鲜杂烩里面还有蛤蜊和鱼类高汤。

Atlantic coast round clams with hard shells; large clams usually used for chowders or other clam dishes.

大西洋海岸产的硬壳圆蛤类；大蛤通常作杂烩用，其他蛤做菜。