The marine animals protected at the national level include dugong and Chinese white dolphin, which are also known as manatee, mermaid, mermaid and Nanhai cattle. It is mainly distributed in South China Sea and Taiwan Province Sea. It belongs to the national first-class protected animals. Chinese white dolphin is the most endangered marine life in the world, and it is also the only national first-class protected animal among China marine whales and dolphins. The marine animals under national first-class protection are: Chinese white dolphin, Kouchner's tortoise, nautilus, red coral, polyporatosaurus, Xanthoceras, Dugong (manatee). The marine animals under national second-class protection include amphioxus, seahorse, tiger-spotted baby, Tangguan snail, Pinctada maxima, green sea turtle, Pacific turtle, hawksbill turtle, leatherback turtle, spotted seal, bearded green sea turtle seal, fur seal and northern sea lion. In addition, there are 39 species of marine cetaceans.