Rossman's Garter Snake
Thamnophis rossmani
A little-known garter snake from western Mexico, named after herpetologist Douglas Rossman.
- Venomous?
- Mildly venomous
- Adult length
- 0.4-0.6 m (16-24 in)
- Range
- Western Mexico (Nayarit region)
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Overview
Rossman's garter snake is known from limited localities in western Mexico. It honors Douglas Rossman, a herpetologist who conducted extensive research on the taxonomy of garter snakes (genus Thamnophis).
As with many recently described or narrowly distributed Mexican garter snakes, detailed ecological data on this species remains limited.
How to identify it
- Slender body with faint to moderate dorsal striping
- Olive to brownish base coloration
- Keeled scales
- Round pupils
- Best distinguished from related species by its restricted western Mexican range and specific scale characters
Habitat & range
Found in lowland and foothill stream and wetland habitats within western Mexico.
Behavior, diet & reproduction
Presumed diurnal and semi-aquatic, foraging near streams for amphibians and invertebrates, consistent with related garter snakes. Mild venom aids in prey handling, harmless to humans. Likely live-bearing.
Frequently asked questions
Who is this species named after?
It is named for Douglas Rossman, a herpetologist known for his research on garter snakes.
Where is it found?
In western Mexico, in the Nayarit region.
Is it dangerous to humans?
No, it is only mildly venomous to small prey.
How well studied is this species?
It is poorly studied, with limited data available on its ecology and behavior.
Rossman's Garter Snake guides
In-depth guides for identifying and understanding Rossman's Garter Snake.
