Crotalus oreganus abyssus

Grand Canyon Rattlesnake

Crotalus oreganus concolor

Midget Faded Rattlesnake

Crotalus cerberus

Arizona Black Rattlesnake

Crotalus viridis

Prairie Rattlesnake

Crotalus viridis

Prairie ‘nuntius-type’ Rattlesnake

Crotalus oreganus lutosus

Great Basin Rattlesnake

All photographs and literature owned by T.C. Houston. Copyright © 2004-2008. All rights reserved. Published August 31, 2008

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SPECIES NOTES

WESTERN RATTLERS   Biological notes on the Crotalus oreganus complex from the Colorado Plateau