Description: English: Figure from The Death Valley Expedition: A biological survey of parts of California, Nevada, Arizona, and Utah (1893). Date: 31 May 1893. Source: North American Fauna No. 7. The Death Valley Expedition Part II. 1893 https://archive.org/details/northamericanfau07unit. Author: US Department of Agriculture.
Description: English: The Western Patch-Nosed snake, Salvadora hexalepis. One of the many non-venomous snakes in the area, it feeds upon lizards, snakes, reptile eggs, and small rodents. Date: 15 July 2003, 11:26. Source: Patch-Nosed Snake. Author: National Park Service from USA.