Western Ribbon Snake
Thamnophis proximus
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyColubridae (Colúbrids)
- GenusThamnophis (Garter Snakes)
- SpeciesThamnophis proximus (Western Ribbon Snake)
Thamnophis proximus, commonly known as the western ribbon snake or western ribbonsnake, is a species of garter snake in the subfamily Natricinae of the family Colubridae. The species is found in the central and southern United States, Mexico, and Central America south to central Costa Rica. The species has six recognized subspecies. Wikipedia →
Closest Relatives at Sian Ka'an Biosphere Reserve
Mexican Parrot Snake
Leptophis mexicanus
Gulf Coast Vine Snake
Oxybelis potosiensis
Dryad Snake
Mastigodryas melanolomus
Yucatán White-lipped Snake
Symphimus mayae
Chicken Snake
Spilotes pullatus
Faded Black-striped Snake
Coniophanes schmidti
Rainforest Cat-eyed Snake
Leptodeira frenata
Green Vine Snake
Oxybelis fulgidus
Green Rat Snake
Senticolis triaspis
Speckled Racer
Drymobius margaritiferus
Central American Indigo Snake
Drymarchon melanurus
Blood Snake
Stenorrhina freminvillei
📅 Monthly Probability
Fewer than 5 records of Western Ribbon Snake at Sian Ka'an Biosphere Reserve — not enough to chart months honestly.
☀️ 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 | Palo Verde National Park | 🇨🇷 Costa Rica | |
| 2 | Arrecifes de Cozumel National Park | 🇲🇽 Mexico | |
| 3 | Cumbres de Monterrey National Park | 🇲🇽 Mexico | |
| 4 | Celestún Biosphere Reserve | 🇲🇽 Mexico | |
| 5 | Sian Ka'an Biosphere Reserve | 🇲🇽 Mexico |