How to Identify the Western Shovelnose Snake (Identification Guide)
The Western Shovelnose Snake is a small desert specialist identified by its flattened, countersunk lower jaw, glossy black-and-cream or black-and-orange banding, and a body built for swimming through loose sand.
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Key identifying features
The Western Shovelnose Snake (Chionactis occipitalis) is a small, highly specialized desert snake best recognized by its flattened, shovel-shaped snout with a countersunk lower jaw, an adaptation that lets it "swim" through loose sand. This distinctive head shape, combined with crisp black bands over a pale or orange background, makes it one of the more readily identifiable small desert snakes.
Coloration & pattern
The body typically shows a pale cream, yellow, or light tan background crossed by a series of well-defined black bands or saddles running down the back and sides. In many populations, orange or reddish saddles alternate with the black bands, creating a striking tricolor effect. The banding is usually crisp and high-contrast rather than blurred or faded, and it typically does not extend fully onto the belly, which remains pale and largely unmarked.
Head, eyes & scales
The head is small and flattened, with the most diagnostic feature being a countersunk lower jaw that sits recessed beneath the upper jaw, allowing sand to flow smoothly over the head while burrowing. Eyes are small with round pupils, positioned to allow some vision while the snake is partially submerged in sand. Scales are smooth and polished, reducing friction as the snake pushes and "swims" through loose, granular substrate.
Size & body shape
This is a small snake, generally 25-43 cm (10-17 inches) in length, with a slender, cylindrical body that tapers gradually toward a pointed tail tip. The body is built for efficient movement through sand rather than deep burrowing, giving it a more streamlined shape than the stouter sand boas found in similar habitats. Its consistent, moderate diameter along the body length aids identification when compared to bulkier desert species.
Range & habitat where you'll see it
The Western Shovelnose Snake inhabits fine, loose desert sands across the southwestern United States, including parts of California, Arizona, and Nevada, particularly in dune fields and sandy washes. It is primarily nocturnal, remaining buried in sand during the heat of the day and emerging at night to forage on the surface. Sightings often occur on sandy roads or open dune habitat after dark, when the snake is active above the surface.
How to tell it apart from look-alikes
The crisp black-and-pale or black-and-orange banding combined with the countersunk lower jaw distinguishes this species from the more variably patterned and rounder-jawed Ground Snake found in overlapping habitat. It differs from coral snakes by lacking the red-yellow-black sequence and by its much smaller, flatter head. Compared to sand boas, the Shovelnose Snake has a longer, tapering tail and a more streamlined, less thickset body adapted for surface sand-swimming rather than deep burrowing.
Frequently asked questions
What is the defining feature of the Western Shovelnose Snake?
A flattened, shovel-shaped head with a countersunk lower jaw, paired with crisp black bands over a pale or orange background.
Why does the Western Shovelnose Snake have a flattened head?
The countersunk jaw and flattened shape let it push through and effectively swim beneath loose desert sand without sand entering its mouth.
How can I tell it apart from a Ground Snake?
The Shovelnose Snake shows more consistently crisp, well-defined black banding and a distinctive flattened, countersunk jaw, while Ground Snakes are far more variable and lack that jaw shape.
Where is the best place to look for a Western Shovelnose Snake?
On sandy desert roads, washes, and dune habitat in the southwestern United States, especially at night when it is active on the surface.