Puffer fish, known as lungfish in ancient times, is commonly known as bubble fish, belly-blowing fish, and Qinglangjun; The scientific name is puffer fish. It is oval, with a blunt front end and a tapered tail. Dorsal fin 1 strip, no ventral fin, no scale or spiny scale, gray-brown body back. The principal and interest of puffer fish are in the middle and lower reaches of the western Pacific Ocean. Sexually mature puffer fish mate and lay eggs from the open sea to the Yangtze River to the middle reaches of the Yangtze River every March.