A herbivorous marine mammal(Dugong dugon), native to tropical coastal waters of the Indian Ocean, Red Sea, and southwest Pacific Ocean and having flipperlike forelimbs and a deeply notched tail fin.

• 儒艮一种食草海洋哺乳动物（儒艮儒艮属），生长于印度洋，红海和西南太平洋热带沿岸水域，具有蹼状前肢和明显锯齿状尾鳍