Snake Identifier
Western Shovel-Nosed Snake (Chionactis occipitalis)
Chionactis occipitalis (Shovel-nosed Snake) (3518509831) by Marshal Hedin from San Diego, via Wikimedia Commons, licensed under CC BY 2.0
Colubrids

Western Shovel-Nosed Snake

Chionactis occipitalis

A small, banded desert specialist with a flattened, shovel-shaped snout adapted for burrowing through loose sand.

Venomous?
Non-venomous
Adult length
25-43 cm (10-17 in)
Range
Mojave and Sonoran Deserts of the southwestern United States and northwestern Mexico

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Overview

The Western Shovel-Nosed Snake is a highly specialized desert species adapted for a life spent moving through loose sand. Its countersunk lower jaw and flattened, wedge-shaped snout allow it to literally swim through sand, foraging just below the surface for invertebrate prey.

This harmless, banded colubrid is a classic example of desert adaptation, being active on the surface primarily at night when temperatures moderate, and diving back into sand to escape heat and predators.

How to identify it

  • Small, cylindrical body with smooth scales
  • Cream to pale yellow ground color crossed by black or dark brown saddles, often alternating with orange or reddish-brown bands
  • Flattened, countersunk lower jaw and shovel-like snout for burrowing
  • Small eyes with round pupils
  • Distinguished from banded sand snakes by the shovel-shaped snout and habitat association with fine, loose sand

Habitat & range

Restricted to desert regions with loose, fine sand, including dunes, washes, and sandy flats of the Mojave and Sonoran Deserts. Found at low to moderate elevations in arid basins and valleys.

Behavior, diet & reproduction

Nocturnal and highly fossorial, spending daylight hours buried beneath the sand surface. Emerges at night to forage for scorpions, spiders, centipedes, and insects. A gentle, inoffensive species that rarely attempts to bite. Reproduces by laying eggs during the warmer months.

Frequently asked questions

Is the Western Shovel-Nosed Snake venomous?

No, it is completely non-venomous and harmless.

What is its shovel-shaped snout for?

It helps the snake burrow and 'swim' through loose desert sand.

When is it active?

Primarily at night, when it emerges from the sand to hunt small invertebrates.

Where does it live?

In sandy desert habitats of the Mojave and Sonoran Deserts in the southwestern U.S. and northwestern Mexico.