Steller's sea cow
noun
1- a very large relative of the dugong that was formerly found in the area of the Bering Sea and Kamchatka Peninsula, discovered and exterminated in the 18th century施特勒海牛, 巨儒艮。
1.1
- Hydrodamalis gigas, family Dugongidae.拉丁名Hydrodamalis gigas, 儒艮科。