Xenopholis

Xenopholis is a genus of rear-fanged snakes of the family Colubridae.

Geographic range
The genus Xenopholis is endemic to South America.

Description
The genus Xenopholis is characterized by distinctive vertebrae. The spinous processes are expanded dorsally, forming shields which are rugose and divided by a median groove.

Species
Three species are recognized as being valid.
 * Xenopholis scalaris (Wucherer, 1861) - Wucherer's ground snake
 * Xenopholis undulatus (Jensen, 1900) - Jensen's ground snake
 * Xenopholis werdingorum Jansen, L. Álvarez & Köhler, 2009

Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Xenopholis.