Small burrowing snake
Mexican Black-headed Snake
HarmlessTantilla atriceps
2 photographs of the Mexican Black-headed Snake. © Karla M. Benítez.
The Mexican Black-headed Snake (Tantilla atriceps) is a non-venomous snake in the Colubridae family, recorded in 2 countries.
- Also called
- Small burrowing snake
- Family
- Colubridae
- Size
- Tiny, 6–12 in.
- Habitat
- Under rocks, logs, and leaf litter across many habitats.
- Behavior
- Secretive, burrowing insect- and centipede-eaters; almost never seen above ground.
- Identify
- Tiny and slender, plain brown or tan, often with a darker head cap.
About the Mexican Black-headed Snake
Tantilla atriceps, the Mexican blackhead snake, a species of snake of the family Colubridae.
The snake is found in Texas in the United States and Mexico.
Adapted from Wikipedia, available under CC BY-SA.
Frequently asked: Mexican Black-headed Snake
- Is the Mexican Black-headed Snake venomous?
- No. The Mexican Black-headed Snake (Tantilla atriceps) is non-venomous and is not considered dangerous to humans. Like most snakes, it will retreat rather than bite when given the chance.
- Is the Mexican Black-headed Snake poisonous?
- Snakes are venomous, not poisonous. "Poisonous" means harmful to eat or touch; "venomous" means injecting toxins through a bite. The Mexican Black-headed Snake is neither poisonous nor venomous.
- Is the Mexican Black-headed Snake dangerous?
- The Mexican Black-headed Snake is not dangerous to humans. It has no medically significant venom and bites only defensively if cornered or handled.
- Where does the Mexican Black-headed Snake live?
- The Mexican Black-headed Snake has verified records in 2 countries, including United States of America, Mexico. See the distribution section below for its full range.
- How do I identify the Mexican Black-headed Snake?
- Tiny and slender, plain brown or tan, often with a darker head cap.
- How big does the Mexican Black-headed Snake get?
- Tiny, 6–12 in.
Where it is found
By U.S. state
More Colubridae snakes
Flat-headed SnakeTantilla gracilis
Plains Black-headed SnakeTantilla nigriceps
Black-headed SnakeTantilla melanocephala
Southeastern Crowned SnakeTantilla coronata
Southwestern Blackhead SnakeTantilla hobartsmithi
Western Black-headed SnakeTantilla planiceps
Bocourt's Black-headed SnakeTantilla bocourti
Florida Crowned SnakeTantilla relicta
Classification
How scientists group this snake, from the broadest category down to the exact species. Each step narrows to its closest relatives.
- OrderThe broad group of scaled reptiles: all snakes and lizards
- Squamata
- FamilyA group of related snakes that share key traits
- Colubridae
- GenusA close-knit group of very similar species
- Tantilla
- SpeciesThis exact snake, named in the two-part scientific name
- Tantilla atriceps
Keep learning
- What to Do If You Find a SnakeFound a snake at home or on a trail? Here is how to stay calm, give it space, identify it safely, and know when to call a professional.
- Venomous vs Nonvenomous: How to Tell the DifferenceThe folk rules for telling venomous snakes apart, where each one fails, and why location-based identification beats guessing by sight.
- What Is a Snake? Anatomy and the BasicsA clear overview of what makes a snake a snake: limbless body plan, anatomy, evolution from lizards, species diversity, and why they are ectothermic.
- How to Keep Snakes Out of Your Yard and HomeA practical guide to keeping snakes out of your yard and home using habitat changes that work, plus what to skip and what to do if one shows up.
Distribution from GBIF & iNaturalist. Venom status per CDC. Background: Wikipedia. Informational only. Never handle a snake to identify it.