Terre-de-Haut racer

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Terre-de-Haut racer
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Alsophis
Species: A. sanctonum
Binomial name
Alsophis sanctonum
Barbour, 1915
  • A.sanctonum sanctonum Barbour, 1915
  • A.sanctonum danforthi Cochran, 1938
Alsophis sanctonum distribution.png

Alsophis antillensis

The Terre-de-Haut racer (Alsophis sanctonum) is a species of snakes found in the Caribbean, on the Lesser Antilles. This species is endemic to Terre-de-Bas Island and Terre-de-Haut Island which make up the Îles des Saintes. Terre-de-Bas and Terre-de-Haut are very small islands with a total area of approximately 13 km2. Because of its presence only on this small area, it is a highly protected species.

It can reach nearly a meter in length. It feeds on lizards and small rodents. It rarely bites humans, but may release a foul-smelling (though harmless) cloacal secretion when disturbed.


Alsophis sanctonum occurs along mangrove edges, roadsides, gardens, wooded areas, preferentially in semi-deciduous forest with Pimenta racemosa, Pisonia grandis, Guapinol, and Bursera simaruba. It is present in areas less frequented by humans.


  • A.sanctonum sanctonum Barbour, 1915 or Terre-de-Haut racer.
  • A.sanctonum danforthi Cochran, 1938 or Terre-de-Bas racer.


  1. ^ Breuil, M.; Day, M. & Knapp, C. (2010). "Alsophis sanctonum". IUCN Red List of Threatened Species. Version 2010.4. International Union for Conservation of Nature. Retrieved 12 December 2011.

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