Snake Identifier
Marajo Rainbow Boa (Epicrates maurus)
Columbian rainbow boa lying on ground - DPLA - 0dbc2b830fa9166d5de5b0ec60a8b5c1 by Garst, Warren, 1922-2016, photographer, via Wikimedia Commons, licensed under CC BY-SA 4.0
Boas

Marajo Rainbow Boa

Epicrates maurus

A rainbow boa population native to Marajo Island in the Amazon River delta, displaying the characteristic iridescent sheen of its genus.

Venomous?
Non-venomous
Adult length
1.2-1.8 m (4-6 ft)
Range
Marajo Island and surrounding Amazon delta region, Brazil

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Overview

The Marajo Rainbow Boa inhabits Marajo Island, the large island at the mouth of the Amazon River, and surrounding delta habitats in northern Brazil. It is part of the widespread Epicrates maurus complex found across northern South America and into Central America.

Its environment is heavily influenced by seasonal flooding typical of the Amazon delta, shaping its ecology and prey availability throughout the year.

How to identify it

  • Smooth scales with a subtle iridescent sheen, less vivid than some other rainbow boa forms
  • Brown to tan base coloration with darker saddle-like blotches
  • Broad, rounded head not sharply set off from the neck
  • Robust, muscular body typical of Epicrates boas
  • Distinguished from other regional forms mainly by locality and subtle pattern variation

Habitat & range

Found on Marajo Island and adjacent floodplain habitats at the mouth of the Amazon River, including seasonally flooded forest, savanna, and riverine vegetation.

Behavior, diet & reproduction

Nocturnal and semi-terrestrial, hunting small mammals, birds, and reptiles. It tolerates seasonally flooded conditions common to its delta habitat. Reproduction is live-bearing, typical of the genus.

Frequently asked questions

Is the Marajo Rainbow Boa venomous?

No, it is a non-venomous constrictor.

Where is the Marajo Rainbow Boa found?

On Marajo Island and the surrounding Amazon delta region of Brazil.

What habitat does the Marajo Rainbow Boa use?

Seasonally flooded forest and savanna habitats typical of the Amazon delta.

What does the Marajo Rainbow Boa eat?

Small mammals, birds, and reptiles.