Description: The southwestern blackhead snake is a small snake, growing to a maximum total length (including tail) of 15 inches, but typically averaging around 8 inches in total length. Dorsally, it is uniformly brown in color, except for the black-colored head, which gives it its common name, and a cream-colored or white collar. On the belly, there is a broad reddish stripe, which runs down the center of the ventral scales.
Habitat: Found in desert, grassland, sagebrush, creosote bush, chaparral, juniper scrub, open coniferous forests. Prefers canyon bottoms and the rocky edges of streams and washes. Often found beneath rocks, plant debris, and other surface cover.
Range: The known range of this species in California and elsewhere is spotty due to its secretive nature. Its range is probably less disjointed than the records show. It has been recorded from the southern Sierra Nevada foothills and in the southern San Joaquin Valley, in the Owens Valley north to the White Mountains, through the Death Valley region, and in isolated locations in the eastern Mojave desert. Outside of California, it occurs in Nevada, Utah, Colorado, Arizona, New Mexico, Texas, and Mexico.
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Disclaimer: ITIS taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. However, it is not a legal authority for statutory or regulatory purposes. While every effort has been made to provide the most reliable and up-to-date information available, ultimate legal requirements with respect to species are contained in provisions of treaties to which the United States is a party, wildlife statutes, regulations, and any applicable notices that have been published in the Federal Register. For further information on U.S. legal requirements with respect to protected taxa, please contact the U.S. Fish and Wildlife Service.