This undated file photo shows a western China mountain snake, a new snake species discovered by Chinese scientists, in southwest China's Sichuan Province. Image:Xinhua Chinese scientists have identified a new species of snake in the West China Rain Zone, a region famed for its rich biodiversity and heavy rainfall. The discovery, announced by the Chengdu Management Branch of the Giant Panda National Park, adds a new member to the genus Plagiopholis — the first to be identified