sirenian mammal

Synonyms:

sea cow, sirenian

Types:

Trichechus manatus, manatee

sirenian mammal of tropical coastal waters of America; the flat tail is rounded

Dugong dugon, dugong

sirenian tusked mammal found from eastern Africa to Australia; the flat tail is bilobate

Hydrodamalis gigas, Steller's sea cow

extinct large sirenian mammal formerly found near the Asiatic coast of the Bering Sea

Type of:

aquatic mammal

whales and dolphins; manatees and dugongs; walruses; seals