Steller's sea cow

(redirected from Hydromalis)
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Noun1.Steller's sea cow - extinct large sirenian mammal formerly found near the Asiatic coast of the Bering Sea
sea cow, sirenian, sirenian mammal - any of two families of large herbivorous aquatic mammals with paddle-shaped tails and flipper-like forelimbs and no hind limbs
genus Hydrodamalis, Hydrodamalis - a genus of the family Dugongidae comprising only Steller's sea cow