Colubridae
Jensen's Ground Snake
HarmlessXenopholis undulatus



3 photographs of the Jensen's Ground Snake. (c) Thiago Alves, some rights reserved (CC BY-NC).
The Jensen's Ground Snake (Xenopholis undulatus) is a non-venomous snake in the Colubridae family, recorded in 1 country.
- Family
- Colubridae
About the Jensen's Ground Snake
Xenopholis undulatus, Jensen's ground snake, is a species of snake in the family Colubridae.
Geographic range
Xenopholis undulatus is found in Brazil and Paraguay.
Adapted from Wikipedia, available under CC BY-SA.
Frequently asked: Jensen's Ground Snake
- Is the Jensen's Ground Snake venomous?
- No. The Jensen's Ground Snake (Xenopholis undulatus) 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 Jensen's Ground Snake poisonous?
- Snakes are venomous, not poisonous. "Poisonous" means harmful to eat or touch; "venomous" means injecting toxins through a bite. The Jensen's Ground Snake is neither poisonous nor venomous.
- Is the Jensen's Ground Snake dangerous?
- The Jensen's Ground Snake is not dangerous to humans. It has no medically significant venom and bites only defensively if cornered or handled.
- Where does the Jensen's Ground Snake live?
- The Jensen's Ground Snake has verified records in 1 country, including Brazil. See the distribution section below for its full range.
Where it is found
More Colubridae snakes
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
- Xenopholis
- SpeciesThis exact snake, named in the two-part scientific name
- Xenopholis undulatus
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.







