California Black-headed Snake
- kingdom: Animalia
- phylum: Chordata
- class: Reptilia
- order: Squamata
- family: Colubridae
- genus: Tantilla
- species: Tantilla planiceps
Primo Tapia- Tijuana
Baja California- San José del Cabo
Baja California Sur
Mexico
Agoura- Alpine
- Brawley
- Cabazon
- Campo
- Casa de Oro-Mount Helix
- Chula Vista
- Descanso
- El Cajon
- Fresno
- Homeland
- La Jolla
- La Mesa
- La Presa
- Lake San Marcos
- Lemon Grove
- Menifee
- National City
- Palm Springs
- Poway
- Rancho Palos Verdes
- Rancho San Diego
- Rolling Hills
- San Diego
- Spring Valley
- Trabuco Canyon
California
United States