A marine bivalve mollusk with an elongated dark shell, often edible.

海产双壳贝，壳细长多为黑色，常可食。

A freshwater bivalve mollusk of rivers and lakes, sometimes edible.

淡水双壳类，生活于江河湖泊，有的可食。

Other similar bivalves, such as the zebra or quagga mussel.

与之相似的其他双壳类，如斑马贻贝或夸加贻贝。