Yenyuan stream salamander  The Yenyuan stream salamander (Batrachuperus yenyuanensis) is a species of salamander in the family Hynobiidae endemic to Sichuan, China, where it occurs in Yanyuan, Xichang, Mianning, and Puxiong counties. Its natural habitats are rivers, freshwater lakes, and freshwater marshes. It is threatened by habitat loss.