The salamander family is an evolutionary group of Anura. There are 1 families in Anura, which are usually completely deformed and occasionally have the shape of children. They all have three pairs of lungs (partially degenerated or degenerated), lobulated testicles and anal glands, which are fertilized in vivo.
Widely distributed in North Africa, Europe, East Asia and eastern and southern North America. What is the temperate zone in the northern hemisphere? The owner of the newt, only a few species have penetrated into the subtropical and tropical regions of Asia. There are the most genera and species in Palaearctic realm. It is distributed in Central Asia, northern India, Myanmar, Thailand, Viet Nam, China and Japan. In China, it is mainly distributed in the south of Qinling Mountains. There are 6 genera 18 species and subspecies: 6 species and subspecies of Eupolyphaga, distributed in mountainous areas of South China and Southwest China; There are 4 species and subspecies of salamander, which are widely distributed in East China, Central China and Yunnan-Guizhou Plateau. There are 4 species of Diptera and 2 species and subspecies of Diptera, which are mainly distributed in East China, Central China, South China and East Guizhou. There are 1 species of Agkistrodon halys and Agkistrodon halys, the former is distributed in Zhenhai, Zhejiang, and the latter in Kunming, Yunnan.