Definition of Steller's sea cow in US English:

Steller's sea cow


  • A very large relative of the dugong that was formerly found in the area of the Bering Sea and Kamchatka Peninsula, discovered and hunted to extinction in the 18th century.

    Hydrodamalis gigas, family Dugongidae

    • ‘With few exceptions, such as the Steller's sea cow, and Caribbean monk seal, most species that are ecologically extinct probably still survive in sufficient numbers for successful restoration with proper management.’
    • ‘In The Empty Ocean, Ellis recounts the historical eradication of entire marine species, including Caribbean monk seals, Labrador ducks, and Steller's sea cow, which was slaughtered to extinction in less than 30 years.’
    • ‘The early casualties of this phenomenon were mostly isolated populations like the dodo of Mauritius and the Steller's sea cow.’
    • ‘This family contains two modern species, dugongs and Steller's sea cow, the latter unfortunately now extinct.’


Named after Steller, Georg Wilhelm.