Snake Identifier
Eastern Green Mamba Bush Viper (Atheris squamigera)
Atheris squamigera 187767288 by Marius Burger, via Wikimedia Commons, licensed under CC0
Vipers

Eastern Green Mamba Bush Viper

Atheris squamigera

An arboreal African viper with rough, keeled scales and variable green coloration, often mottled with yellow or blue tones.

Venomous?
Venomous
Adult length
0.5-0.8 m (20-31 in)
Range
Central and West African rainforests

Found a snake like this?

Identify any snake from a photo, free.

Identify a snake

Overview

This bush viper is an arboreal, forest-dwelling species from Central and West Africa, notable for its rough, heavily keeled scalation that gives it a distinctly bristly appearance. Coloration is highly variable, ranging from bright green to yellowish or bluish-green with dark mottling.

It belongs to the genus Atheris, a group of small, venomous vipers uniquely adapted to life in trees and shrubs within humid tropical forest.

How to identify it

  • Color ranges from bright green to olive, yellow-green, or bluish-green
  • Irregular dark crossbands or mottling along the body
  • Extremely rough, strongly keeled scales giving a spiny texture
  • Broad, triangular head distinct from the neck
  • Vertically elliptical pupils
  • Prehensile tail adapted for climbing
  • Distinguished from other Atheris species by scale texture and regional range

Habitat & range

Found in lowland and mid-elevation tropical rainforest, forest edges, and dense vegetation near rivers and swamps across Central and West Africa. Primarily arboreal, favoring shrubs, low trees, and vine tangles.

Behavior, diet & reproduction

Nocturnal and largely arboreal, moving slowly through vegetation. Feeds on frogs, lizards, small mammals, and birds. Ambushes prey from a coiled position among branches. Gives birth to live young (viviparous), typically in small litters.

Frequently asked questions

Is the Eastern Green Mamba Bush Viper venomous?

Yes, it is a venomous viper, though it is unrelated to true mambas despite the common name confusion.

Where does this bush viper live?

It inhabits rainforests of Central and West Africa, favoring shrubs and low trees.

Why is it called a bush viper?

The name reflects its arboreal habits in bushes and low forest vegetation, part of the genus Atheris.

What does it eat?

It preys on frogs, small lizards, birds, and small mammals.