Rhino Rat Snake
Gonyosoma boulengeri
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassSquamata
- FamilyColubridae (Colúbrids)
- GenusGonyosoma (Redtail Rat Snakes)
- SpeciesGonyosoma boulengeri (Rhino Rat Snake)
The rhinoceros ratsnake (Gonyosoma boulengeri), also known commonly as the rhinoceros snake, rhino rat snake, and Vietnamese longnose snake, is a species of nonvenomous ratsnake in the family Colubridae. The species is found from northern Vietnam to southern China. It has a prominent, distinctive, scaled protrusion on the front of its snout, which has led to its common naming after a rhinoceros. Wikipedia →
Closest Relatives at Cuc Phuong National Park
Oriental Whipsnake
Ahaetulla prasina
North China Green Snake
Ptyas multicincta
Guangxi cat snake
Boiga guangxiensis
Tawny Cat Snake
Boiga multomaculata
Chinese Kukri Snake
Oligodon chinensis
Northern Reed Snake
Calamaria septentrionalis
Vietnamese Bronzeback
Dendrelaphis ngansonensis
Golden Tree Snake
Chrysopelea ornata
Flower Snake
Elaphe moellendorffi
Beauty Rat Snake
Elaphe taeniura
Futsing Wolf Snake
Lycodon futsingensis
Chinese Ratsnake
Ptyas korros
📅 Monthly Probability
Fewer than 5 records of Rhino Rat Snake at Cuc Phuong National Park — not enough to chart months honestly.
🌅 When They're Spotted
Most active at dawn and dusk · 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 | Cuc Phuong National Park | 🇻🇳 Vietnam |
More parks will be added in future updates.