Texas Alligator Lizard
Gerrhonotus infernalis
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyAnguidae (Glass and Alligator Lizards)
- GenusGerrhonotus (eastern alligator lizards)
- SpeciesGerrhonotus infernalis (Texas Alligator Lizard)
The Texas alligator lizard (Gerrhonotus infernalis) is a species of lizard in the subfamily Gerrhonotinae of the family Anguidae. The species is endemic to the central region of the American state of Texas, and south into adjacent northern Mexico. Wikipedia →
20–30% of wildlife watchers report a Texas Alligator Lizard sighting in Big Bend National Park, based on 69 days of visitor records from GBIF citizen-science data.
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
| # | Park | Country | Probability |
|---|---|---|---|
| 1 | Big Bend National Park | 🇺🇸 United States | |
| 2 | Cumbres de Monterrey National Park | 🇲🇽 Mexico |
Quick answers
What are the chances of seeing a Texas Alligator Lizard in Big Bend National Park?
About 21% of wildlife watchers report a Texas Alligator Lizard sighting in Big Bend National Park, based on 69 days of visitor records from GBIF citizen-science data.
When is the best time to see Texas Alligator Lizard in Big Bend National Park?
September has the highest sighting rate for Texas Alligator Lizard in Big Bend National Park in our monthly data.