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。