Definitions of sirenian mammal
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any of two families of large herbivorous aquatic mammals with paddle-shaped tails and flipper-like forelimbs and no hind limbs
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types:
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Trichechus manatus, manatee
sirenian mammal of tropical coastal waters of America; the flat tail is rounded
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Dugong dugon, dugong
sirenian tusked mammal found from eastern Africa to Australia; the flat tail is bilobate
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Hydrodamalis gigas, Steller's sea cow
extinct large sirenian mammal formerly found near the Asiatic coast of the Bering Sea
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type of:
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aquatic mammal
whales and dolphins; manatees and dugongs; walruses; seals
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Trichechus manatus, manatee
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