Forty-seven species of snake have been recorded in Trinidad and Tobago, making the snake population of this area the most diverse in the Caribbean. Forty-four of these snake species are found in Trinidad and twenty-one in Tobago. Many of these species are South American, most of which are present in Venezuela. Trinidad and Tobago consists of two main islands, Trinidad and Tobago, and several smaller islands. The Bocas Islands, which lie between Trinidad and Venezuela, in the Bocas del Dragón (Dragon's Mouths), consist of Chacachacare, Monos, Huevos and Gaspar Grande. Several smaller islands lie off Trinidad, but snakes have been recorded on only one of them, Caledonia Island. Snakes have been recorded on one island off Tobago, Little Tobago. Four species are venomous: two coral snake species (Micrurus spp.), the fer-de-lance (Bothrops atrox) and the South American bushmaster (Lachesis muta). The common coral (Micrurus fulvius) is found on at least two of the Bocas Islands: Gaspar Grande and Monos. No venomous snakes inhabit Tobago.

Anomalepididae is a family of nonvenomous snakes native to Central and South America. They are similar to Typhlopidae, except that some species possess a single tooth in the lower jaw. One possible species has been recorded in Trinidad and Tobago.

Anomalepididae

Species	Common name	Trinidad	Tobago	Bocas Is.	Other
Helminthophis cf. flavoterminatus	Yellow-headed ground puppy; Trinidadian dawn blind snake	Yes	No	No	No

Leptotyphlopidae is a family of snakes found in North and South America, Africa, and Asia. All are fossorial and adapted to burrowing, feeding on ants and termites. One species has been recorded in Trinidad and Tobago.

Leptotyphlopidae

Species	Common name	Trinidad	Tobago	Bocas Is.	Other
Epictia tenella	Guyana blind snake	Yes	No	No	No

Typhlopidae is a family of blind snakes found mostly in the tropical regions of Africa, Asia and the Americas. Two species have been recorded in Trinidad and Tobago.

Typhlopidae

Species	Common name	Trinidad	Tobago	Bocas Is.	Other
Amerotyphlops brongersmianus	Brongersma's worm snake	Yes	No	No	No
Amerotyphlops trinitatus	Trinidad burrowing snake	Yes	Yes	No	No

Aniliidae is a monotypic family created for the monotypic genus Anilius, which means that there is only one species in the entire family. This species is A. scytale, found in South America.

Aniliidae

Species	Common name	Trinidad	Tobago	Bocas Is.	Other
Anilus scytale scytale	Burrowing false coral; rouleau	Yes	No	No	No

Boidae is a family of non-venomous snakes found in America, Africa, Europe, Asia and some Pacific Islands, containing the boas. Four species have been recorded in Trinidad and Tobago.

Boidae

Species	Common name	Trinidad	Tobago	Bocas Is.	Other
Boa constrictor constrictor	Macajuel, boa constrictor	Yes	Yes	Yes	No
Corallus ruschenbergerii	Cascabel dormillon; Cook's tree boa	Yes	Yes	No	No
Epicrates cenchria maurus	Rainbow boa	Yes	Yes	Yes	No
Eunectes murinus gigas	Green anaconda	Yes	No	No	No

Colubridae is a family of snakes comprising about two thirds of all snake species on earth. Colubrid species are found on every continent, except Antarctica. Species from three subfamilies are found in Trinidad and Tobago.

Xenodontinae is a subfamily of snakes within the family Colubridae that includes mud snakes and New World hognose snakes.

Xenodontinae

Species	Common name	Trinidad	Tobago	Bocas Is.	Other
Liophis cobellus cobellus	Mangrove snake, mangrove mapepire	Yes	No	No	No
Liophis melanotus nesos	Beh belle chemin, doctor snake	Yes	Yes	Yes	No
Liophis reginae zweifeli	High woods coral	Yes	Yes	No	No
Oxyrhopus petola petola	False coral	Yes	Yes	No	No
Pseudoboa neuwiedii	Ratonel	Yes	Yes	Yes	No
Siphlophis cervinus	Checkerbelly	Yes	No	No	No
Siphlophis compressus	Tropical flat snake	Yes	No	No	No
Thamnodynastes ramonriveroi	Striped swamp snake	Yes	No	No	No
Tripanurgos compressus	Mapepire de fe, false coral	Yes	No	No	No

Dipsadinae is a subfamily of snakes within the family Colubridae that includes cat-eyed snakes, night snakes, and black-striped snakes.

Dipsadinae

Species	Common name	Trinidad	Tobago	Bocas Is.	Other
Atractus fuliginosus	Hallowell's ground snake	No	Yes	No	No
Atractus trilineatus	Three-lined ground snake	Yes	Yes	?	No
Atractus cf. univittatus	Tobago one-lined snake	No	Yes	No	No
Clelia clelia clelia	Black cribo, mussurana	Yes	No	Yes	No
Dipsas variegata trinitatis	Snail-eating snake	Yes	No	No	No
Erythrolamprus aesculapii	False coral	Yes	No	No	No
Erythrolamprus bizona	False coral	Yes	No	No	No
Erythrolamprus cobella	Mangrove snake	Yes	No	No	No
Erythrolamprus melanotus	Black-backed snake	Yes	Yes	No	No
Erythrolamprus ocellatus	Tobago false coral, red snake	No	Yes	No	No
Erythrolamprus pseudoreginae	Tobago stream snake	No	Yes	No	No
Erythrolamprus zweifeli	Zweifel's ground snake	Yes	No	No	No
Helicops angulatus	Water mapepire, brown-banded water snake	Yes	No	No	No
Hydrops triangularis neglectus	Water coral	Yes	No	No	No
Imantodes cenchoa cenchoa	Mapepire corde violon, fiddle-string snake	Yes	Yes	No	No
Leptodeira annulata ashmeadi	False mapepire, cat-eyed night snake	Yes	Yes	Yes	No
Ninia atrata	Red-nape snake, ring neck snake	Yes	Yes	No	No
Ninia franciscoi	Trinidad coffeesnake	Yes	No	No	No
Sibon nebulata nebulata	Clouded snake	Yes	Yes	Yes	No

Colubrinae is the largest subfamily of colubrids, and includes rat snakes, king snakes, milk snakes, vine snakes and indigo snakes.

Colubrinae

Species	Common name	Trinidad	Tobago	Bocas Is.	Other
Chironius carinatus carinatus	Machete savane, yellow machete	Yes	No	No	No
Chironius multiventris septentrionalis	Long-tailed machete savane	Yes	No	No	No
Chironius scurrulus	Smooth machete savane	Yes	No	No	No
Drymarchon corais corais	Yellow-tailed cribo	Yes	Yes	Yes	No
Leptophis ahaetulla coeruleodorus	Lora, parrot snake	Yes	Yes	No	No
Leptophis stimsoni	Grey lora	Yes	No	No	No
Mastigodryas amarali	Amaral's tropical racer	Yes	Yes	No	No
Mastigodryas boddaerti boddaerti	Machete couesse	Yes	No	Yes	Yes
Mastigodryas boddaerti dunni	Machete couesse	No	Yes	No	Yes
Oxybelis rutherfordi	Horsewhip	Yes	Yes	Yes	No
Phrynonax polylepis	Olivaceous bird snake, cutlah	Yes	No	No	No
Pseustes poecilonotus polylepis	Dos cocorite	Yes	No	No	No
Pseustes sulphureus sulphureus	Yellow-bellied puffing snake	Yes	No	No	No
Spilotes pullatus pullatus	Tigre, chicken snake	Yes	Yes	No	No
Tantilla melanocephala	Black-headed snake	Yes	Yes	Yes	No

Elapidae is a family of venomous snakes found in tropical and subtropical regions around the world, including the Indian Ocean and the Pacific. Two species are found in Trinidad and Tobago.

Elapidae

Species	Common name	Trinidad	Tobago	Bocas Is.	Other
Micrurus diutius	Trinidad ribbon coral snake	Yes	No	No	No
Micrurus circinalis	Large coral snake	Yes	No	Yes	No

Viperidae is a family of venomous snakes found all over the world, except for Australia, New Zealand, Ireland, Madagascar, Hawaii and the Arctic Circle. All have relatively long hinged fangs that permit deep penetration and injection of venom. Two species are found in Trinidad and Tobago.

Species	Common name	Trinidad	Tobago	Bocas Is.	Other
Bothrops atrox	Mapepire balsain, fer-de-lance	Yes	No	No	No
Lachesis muta muta	Mapepire zanana, mapepire z'ananas, bushmaster	Yes	No	No	No

• Environment of Trinidad and Tobago
• List of birds of Trinidad and Tobago
• List of butterflies of Trinidad and Tobago
• List of reptiles of Trinidad and Tobago

All information is based on Boos (2001) unless otherwise stated.

• Boos, Hans E.A. (2001). The snakes of Trinidad and Tobago. Texas A&M University Press, College Station, TX. ISBN 1-58544-116-3.

• Medicinal and ethnoveterinary remedies of hunters in Trinidad from BMC Complementary and Alternative Medicine (BioMed Central).