Banded Sand Snake

The banded sand snake is a small, highly specialized colubrid found in the sandy deserts of the southwestern United States and northwestern Mexico. It belongs to a group of desert snakes convergently adapted for a sand-swimming lifestyle, sharing many features with the unrelated shovelnose snakes found in the same region.

It is one of the smallest snakes in its range and is rarely seen due to its almost entirely subterranean habits within loose sand.

The species is non-venomous and harmless to humans.

• Very small, slender, cylindrical body
• Bold black banding alternating with orange, yellow, or reddish bands across the back
• Smooth, polished scales that reduce friction while burrowing
• Wedge-shaped snout with a countersunk lower jaw for pushing through sand
• Small eyes and reduced head width
• Adults typically only 20-30 cm (8-12 in), among the smallest banded desert snakes

Restricted to fine, loose desert sand habitats such as dunes and sandy flats in the southwestern United States (Arizona, California) and adjacent Mexico (Sonora, Baja California). Closely tied to sandy substrate suitable for burrowing.

Nocturnal and highly fossorial, spending most of its time just beneath the sand surface and emerging briefly at night to forage. It feeds on small invertebrates, particularly insect larvae and other soft-bodied prey found in sand. It is inoffensive and burrows away quickly when uncovered rather than defending itself. Reproduction is egg-laying, with very small clutches given its diminutive size.