The tiny, shelled animal is only known to exist in water sources along the Nevada-Oregon border in the western United States.

这种微小的带壳动物仅知存在于美国西部内华达州和俄勒冈州边界的水源中。

Giant clams are these massive and colorful shelled marine animals, the largest of its kind.

巨型蛤蜊是这些体型巨大、 色彩斑斓的带壳海洋动物，是同类中体型最大的。