Any of various semiaquatic carnivores of the genus mustela , especially M.vison of North america , resembling the weasel and having short ears , a pointed snout , short legs , and partly webbed toes .
鼬一种鼬属的半水生食肉动物，尤指北美的鼬属水貂同其它鼬属动物相似，耳短、口吻突出、腿短且部分趾间有蹼。
genus Mustela