Ruby-Eyed Green Pit Viper
Trimeresurus rubeus
A green pit viper of southern Indochina known for its distinctive ruby-red eyes.
- Venomous?
- Venomous
- Adult length
- 0.5-0.8 m (1.6-2.6 ft)
- Range
- Southern Vietnam and Cambodia
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Overview
The Ruby-Eyed Green Pit Viper is found in forested regions of southern Vietnam and Cambodia, and is named for the deep red iris coloration that distinguishes it from many related green pit vipers.
It is part of the broader Trimeresurus radiation of Southeast Asian pit vipers, many of which show subtle but diagnostic differences in eye color and scalation.
How to identify it
- Bright green body, males often with a pale lateral stripe
- Distinctive ruby-red or deep red eyes with vertical pupils
- Triangular head with heat-sensing facial pits
- Slender body with a prehensile tail
- Keeled scales along the back
- Eye color is a key distinguishing feature from other regional green pit vipers
Habitat & range
Found in lowland and hill evergreen forests of southern Vietnam and Cambodia, often in humid forest understory near streams and dense vegetation.
Behavior, diet & reproduction
Nocturnal and arboreal, typically resting coiled on low branches during the day. Feeds on frogs, lizards, and small mammals. Reproduction is viviparous, producing live young.
Frequently asked questions
Is the Ruby-Eyed Green Pit Viper venomous?
Yes, it is venomous.
Why is it called ruby-eyed?
It has distinctive deep red or ruby-colored eyes.
Where is it found?
In forests of southern Vietnam and Cambodia.
Does it lay eggs?
No, it is viviparous and gives birth to live young.
Ruby-Eyed Green Pit Viper guides
In-depth guides for identifying and understanding Ruby-Eyed Green Pit Viper.
