NNTRC Snakes

Scientific Name

Crotalus mitchelli pyrrhus

Common Name 

Southwerstern Speckled Rattlesnake

Physical Characteristics

Length, 23-52 in. (57-132 cm). The background color can vary greatly and frequently resembles the surrounding rocks. Color ranges include various shades of white or grey but also include pink, yellow, and rusty orange. There is a vaguely defined dark dorsal pattern which may be somewhat hexagon or diamond shaped.

Geographic Range (USA & Mexico)

Extreme southern Nevada, western Arizona, and southern California in the United States southward into the Mexican states of Baja California del Norte and northern parts of Baja California del Sur.

Map button button

Found in arid and semiarid habitat in predominately rocky areas and loose and sandy soils. Can be found from sea level to 2500 m.


Small mammals and lizards.


Hemorrhagins are the predominant toxins.


Speckled Rattlesnakes are usually alert and will stand their ground when encountered.

This page was last updated on: February 12, 2016