Tretanorhinus

Tretanorhinus is a genus of snakes in the subfamily Dipsadinae of the family Colubridae.

Geographic range
The genus Tretanorhinus is endemic to Central America, northern South America, and the West Indies.

Species
The genus contains the following four species which are recognized as being valid.
 * Tretanorhinus mocquardi Bocourt, 1891 - Mocquard's swamp snake
 * Tretanorhinus nigroluteus Cope, 1861 - orange-bellied swamp snake, orangebelly swamp snake
 * Tretanorhinus taeniatus Boulenger, 1903 - striped swamp snake
 * Tretanorhinus variabilis A.M.C. Duméril, Bibron & A.H.A. Duméril, 1854 - Caribbean water snake

The specific name, mocquardi, is in honor of French herpetologist François Mocquard.

Reproduction
All species in the genus Tretanorhinus are oviparous.