Snake Identifier
Dumeril's Boa (Acrantophis dumerili)
Acrantophis dumerili 01 by AxelStrauss, via Wikimedia Commons, licensed under CC BY-SA 3.0
Boas

Dumeril's Boa

Acrantophis dumerili

A robust, non-venomous ground boa endemic to Madagascar, named after French zoologist Auguste Dumeril and known for its heavily patterned camouflage.

Venomous?
Non-venomous
Adult length
1.5-2.5 m (5-8.2 ft)
Range
Southwestern and southern Madagascar

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Overview

Dumeril's Boa is a large, non-venomous constrictor endemic to the dry forests and scrublands of southwestern and southern Madagascar. It is one of two species in the genus Acrantophis, both restricted to the island.

Its heavily blotched, earth-toned pattern provides excellent camouflage among leaf litter and dry forest substrate.

How to identify it

  • Heavily blotched pattern in shades of brown, tan, and gray, providing strong camouflage
  • Stocky, muscular build typical of ground boas
  • Broad head distinct from the neck
  • Vertically elliptical pupils
  • Rough-textured, keeled-appearing scales
  • Distinguished from the Madagascar ground boa by geographic range and subtle pattern differences

Habitat & range

Found in dry deciduous forests, scrubland, and spiny forest habitats of southwestern and southern Madagascar. Often shelters in leaf litter, under fallen logs, or in burrows during the hottest parts of the day.

Behavior, diet & reproduction

Primarily nocturnal and terrestrial, though capable of climbing when necessary. Feeds on small mammals and birds, subduing prey through constriction. Reproduction is viviparous, with females giving birth to live young after a lengthy gestation.

Frequently asked questions

Is Dumeril's Boa venomous?

No, it is a non-venomous constrictor that kills prey by constriction rather than venom.

Where is it found?

It is endemic to dry forests and scrublands of southwestern and southern Madagascar.

How does it differ from the Madagascar ground boa?

The two species differ in geographic range and subtle pattern and scale characteristics, though both belong to the genus Acrantophis.

What does it eat?

It preys on small mammals and birds, constricting them before consumption.