The Western shovelnose snake (Chionactis occipitalis) is a species of snake of the family Colubridae. The snake is found in the United States (Arizona, California, Nevada) and Mexico. Order: Squamata, Suborder: Serpentes, Family: Colubridae, Subfamily: Colubrinae, Genus: Chionactis, Species: Chionactis occipitalis (Hallowell, 1854).