Southwestern Black-headed Snake
- kingdom: Animalia
- phylum: Chordata
- class: Reptilia
- order: Squamata
- family: Colubridae
- genus: Tantilla
- species: Tantilla hobartsmithi
Ciudad Juárez
Chihuahua
MexicoThree Rivers
CaliforniaMesilla
New MexicoHurricane
Saint George
Utah
United States