Dipsadidae
Chihuahuan Nightsnake
Hypsiglena jani

A closer look
A small, secretive night hunter with mild rear-fanged venom not considered dangerous to people. It is most often associated with rocky dry country and typically feeds on lizards and small snakes.
- Habitat
- Rocky dry country
- On the menu
- Lizards and small snakes
- Behavior
- A mostly secretive ground hunter that spends much of its time under cover.
Rear-fanged and not generally considered medically significant, but any wild snake can bite. Do not handle.
Safety & bite guidance ↗Where it is listed
A sense of place.
Checklist presence only. A highlighted state is not a local range boundary. Territory tiles are schematic.
State & territory checklist
About continuous range data
A verified habitat-model layer is not available for this species in this release. Earlier broad sketches connected jurisdiction locations; they did not show measured occurrence or USGS habitat predictions.
Use USGS distribution resources ↗ for available modeled habitat data.
Names, sources & image evidence
Also known as: Texas Nightsnake
Taxonomy: reviewed. Territory checklist entries may be provisional. Field descriptions include broad group-level natural-history summaries.
Research Grade iNaturalist observation 173162497 has exact taxon Hypsiglena jani
Conservation & local rules
Collection, possession, relocation, and protection rules vary by state and territory. Check the relevant wildlife agency before taking action. Leave wild snakes where they are.