Mona Boa
Chilabothrus monensis
A small West Indian boa endemic to Mona Island and nearby islands in the Puerto Rican bank.
- Venomous?
- Non-venomous
- Adult length
- 0.8-1.2 m (2.6-4 ft)
- Range
- Mona Island and Virgin Islands (Puerto Rico region)
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Overview
The Mona Boa is a small, insular boa restricted to Mona Island and related populations in the Puerto Rico region, part of the Caribbean radiation of Chilabothrus boas.
Its limited island distribution makes it vulnerable to habitat disturbance and introduced predators, common threats to Caribbean boa species.
How to identify it
- Small, slender body compared to mainland boas
- Coloration typically brown or grayish with darker blotching or banding
- Smooth scales, head moderately distinct from neck
- Large eyes suited to nocturnal activity
- Distinguished from related Caribbean boas by its restricted island range and specific pattern
Habitat & range
Found in dry forest, rocky terrain, and scrubland on Mona Island and nearby small islands within the Puerto Rico bank.
Behavior, diet & reproduction
Nocturnal, feeding on lizards, birds, and small mammals, using both ambush and active foraging depending on prey availability. Reproduces via live birth, characteristic of West Indian boas.
Frequently asked questions
Is the Mona Boa venomous?
No, it is a non-venomous constrictor.
Where is it endemic to?
Mona Island and nearby islands within the Puerto Rico bank.
Is it considered at risk?
Its restricted island range makes it vulnerable to habitat loss and introduced predators, common concerns for Caribbean boas.
What genus does it belong to?
Chilabothrus, the West Indian boas.
Mona Boa guides
In-depth guides for identifying and understanding Mona Boa.
