Variable Sandsnake, Chilomeniscus stramineus Cope, 1860
Adults may reach 28 cm, thus this is one of the smallest snakes in the southwestern US. It is nocturnal and rarely active on the surface. It is a sand swimmer, with smooth scales, a flat rostral scale and nasal valves to keep the sand out of its nares. Sand snake feed on a variety of invertebrates, often below the surface of the desert.