Colubridae
Phalotris mertensi
HarmlessThis species has no widely used English common name.


2 photographs of the Phalotris mertensi. (c) Rafael Rosa, some rights reserved (CC BY-SA).
Phalotris mertensi is a rear-fanged, mildly venomous snake in the Colubridae family, recorded in 1 country.
- Family
- Colubridae
About the Phalotris mertensi
Phalotris mertensi is a species of snake in the subfamily Dipsadinae of the family Colubridae. The species is native to central eastern South America.
Etymology
The specific name, mertensi, is in honor of German herpetologist Robert Mertens.
Geographic distribution
Phalotris mertensi is found in southeastern Brazil, in the Brazilian states of Goiás, Minas Gerais, Mato Grosso, Mato Grosso do Sul, Paraná, and São Paulo. It is also found in eastern Paraguay.
Habitat
The preferred natural habitat of Phalotris mertensi is savanna.
Description
A medium-sized species of snake, Phalotris mertensi may attain a snout-to-vent length (SVL) of 1.26 m (4.1 ft). Males reach sexual maturity at 48 cm (19 in) SVL, and females at 51 cm (20 in).
Behavior
Phalotris mertensi is fossorial, and it is both diurnal and nocturnal.
Diet
Phalotris mertensi preys upon caecilians.
Reproduction
Phalotris mertensi is oviparous. Clutch size is from three to seven eggs.
Adapted from Wikipedia, available under CC BY-SA.
Frequently asked: Phalotris mertensi
- Is the Phalotris mertensi venomous?
- The Phalotris mertensi is rear-fanged and only mildly venomous. It is not considered dangerous to humans (its venom is weak and its fangs sit at the back of the mouth) but a bite can cause local swelling or irritation, so it should not be handled.
- Is the Phalotris mertensi poisonous?
- Snakes are venomous, not poisonous. "Poisonous" means harmful to eat or touch; "venomous" means injecting toxins through a bite. The Phalotris mertensi is neither poisonous nor venomous.
- Is the Phalotris mertensi dangerous?
- The Phalotris mertensi is not dangerous to humans. It has no medically significant venom and bites only defensively if cornered or handled.
- Where does the Phalotris mertensi live?
- The Phalotris mertensi has verified records in 1 country, including Brazil. See the distribution section below for its full range.
- What does the Phalotris mertensi eat?
- Phalotris mertensi preys upon caecilians.
Where it is found
More Colubridae snakes
Dumeril's Diadem SnakePhalotris lemniscatus
Mato Grosso Burrowing SnakePhalotris matogrossensis
Phalotris nasutusPhalotris nasutus
Mendoza Collared SnakePhalotris cuyanus
Tricolored Burrowing SnakePhalotris tricolor
Phalotris suspectusPhalotris suspectus
Phalotris lativittatusPhalotris lativittatus
Phalotris reticulatusPhalotris reticulatus
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
- Phalotris
- SpeciesThis exact snake, named in the two-part scientific name
- Phalotris mertensi
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.