Snake Identifier
Crowned False Boa (Pseudoboa coronata)
Pseudoboa coronata - Flickr - Dick Culbert by Dick Culbert from Gibsons, B.C., Canada, via Wikimedia Commons, licensed under CC BY 2.0
Colubrids

Crowned False Boa

Pseudoboa coronata

A slender reddish colubrid from South America named for a dark crown-like marking on its head.

Venomous?
Mildly venomous
Adult length
0.6-0.9 m (2-3 ft)
Range
Northern and western South America

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Overview

The crowned false boa is a mildly venomous rear-fanged snake distributed across northern and western South America. Its name derives from a distinctive dark marking atop the head resembling a crown.

It is not dangerous to humans and is most active at night, foraging on the forest floor for small vertebrates.

How to identify it

  • Reddish to reddish-brown body, often paler toward the tail
  • Dark, crown-shaped marking on top of the head
  • Smooth scales, slender cylindrical body
  • Head slightly distinct from neck
  • Round pupils
  • Distinguished from Neuwied's false boa by the head marking and slightly slimmer build

Habitat & range

Occurs in tropical lowland and premontane forests of northern and western South America, generally below 1,200 m elevation.

Behavior, diet & reproduction

Nocturnal and terrestrial, foraging actively for lizards and small mammals. Lays eggs as its reproductive mode.

Frequently asked questions

Is the crowned false boa venomous?

It is mildly venomous via rear fangs but poses no significant danger to people.

What gives it its name?

A dark crown-shaped marking on top of its head.

What does it eat?

Small lizards and mammals.

Where does it live?

Tropical forests of northern and western South America.