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nounan animal order including: manatees; dugongs; Steller's sea cow
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Definition that contains sirenia
- manatee sirenian mammal of tropical coastal waters of America; the flat tail is rounded
- dugong sirenian tusked mammal found from eastern Africa to Australia; the flat tail is bilobate
- dugong dugon sirenian tusked mammal found from eastern Africa to Australia; the flat tail is bilobate
- trichechus manatus sirenian mammal of tropical coastal waters of America; the flat tail is rounded