Western Diamondback Rattlesnake

Crotalus atrox

Description 4

VENOMOUS. Rough, sharply-keeled scales, broad head on a narrow neck, vertical slit pupils. Stocky body has a brown to tan diamond shaped pattern down the back, ending with alternating black and white before the rattle. Diamond pattern is not always conspicuous, can vary in different individuals. Two parallel pale stripes separated by a darker stripe extends diagonally across the cheeks to the eyes. Typically 3 to 4 feet (91 to 122cm) long. (J. R. Dixon and J. E. Werler, Texas Snakes: A Field Guide, University of Texas Press, 2000.)

Sources and Credits

  1. Gary Stolz (photographer)/Pharaoh Hound, no known copyright restrictions (public domain), http://eol.org/data_objects/26808621
  2. (c) Chris Harrison, some rights reserved (CC BY-NC), http://www.inaturalist.org/photos/2845341
  3. (c) 1999 California Academy of Sciences, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/13595907
  4. (c) Amber Leung, some rights reserved (CC BY-SA)

More Info

iNat Map

Defining features black and white bands on tail, pit, rattle
Type venomous
Scales keeled
Pupils vertical slit
Colors black, brown, tan, white
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