Summary ⁵

Hypsiglena jani, commonly known as the Texas night snake, is a species of small colubrid native to the southwestern United States and northeastern Mexico.

Description ⁶

H. jani grows from 10 to 16 inches (25 to 41 centimetres) in total length (including tail), record 20 inches (51 cm). It is typically a light gray or tan in color, with dark brown or dark gray blotching down the back, and has an unmarked underside. It has smooth dorsal scales. The eye has a vertically elliptical pupil. H. jani is rear-fanged, and is considered to be venomous, though it is not dangerous to humans.

Habitat ⁶

H. jani prefers semi-arid habitats with rocky soils.

Geographic range ⁶

H. jani ranges from southern Kansas to southern Colorado, and south throughout New Mexico, the western half of Texas to central Mexico.

Sources and Credits

1. (c) J. N. Stuart, all rights reserved, uploaded by J. N. Stuart, http://www.flickr.com/photos/21786539@N03/4642202356
2. (c) Chris Harrison, some rights reserved (CC BY-NC), uploaded by Chris Harrison
3. (c) Diana-Terry Hibbitts, some rights reserved (CC BY-NC), uploaded by Diana-Terry Hibbitts
4. (c) Nancye Saunders Drukker, some rights reserved (CC BY-NC-ND), uploaded by Nancye Saunders Drukker
5. Adapted by Desmon M Dunn from a work by (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Hypsiglena_jani
6. (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Hypsiglena_jani

More Info

• iNat taxon page
• Animal Diversity Web
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Global Biodiversity Information Facility (GBIF)
• HerpMapper
• NatureServe Explorer 2.0
• Snake Database
• The Reptile Database
• VertNet

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