Tonkin Pit Viper
Trimeresurus tonkinensis
A green pit viper native to the Tonkin region of northern Vietnam and adjacent southern China.
- Venomous?
- Venomous
- Adult length
- 0.6-0.9 m (2-3 ft)
- Range
- Northern Vietnam (Tonkin region), southern China
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Overview
The Tonkin pit viper is native to the mountainous Tonkin region of northern Vietnam and adjoining parts of southern China. It belongs to the widespread Asian bamboo pit viper group found throughout mainland Southeast Asia.
It is an arboreal, nocturnal predator relying on green cryptic coloration and heat-sensing pits to ambush prey.
How to identify it
- Green body, sometimes with subtle darker markings
- Triangular head, vertical pupils
- Keeled scales
- Pale or reddish tail tip
- Distinguished from related Trimeresurus species by locality and minor scale differences
Habitat & range
Found in forested hills and mountains of the Tonkin region of northern Vietnam and adjacent southern China, from lowland to mid-elevation forest.
Behavior, diet & reproduction
Nocturnal and arboreal, resting coiled on vegetation by day. Feeds on frogs, lizards, and small mammals. Ambush hunter using heat-sensing pits. Gives birth to live young.
Frequently asked questions
Is the Tonkin pit viper venomous?
Yes, it is a venomous pit viper.
Where is it found?
In the Tonkin region of northern Vietnam and adjacent southern China.
Is it arboreal?
Yes, it is primarily arboreal, found on vegetation and low branches.
What does it eat?
Frogs, lizards, and small mammals.
Tonkin Pit Viper guides
In-depth guides for identifying and understanding Tonkin Pit Viper.
