ARIZONA RIDGENOSE RATTLESNAKE


Scientific name: Crotalus willardi willardi

Size

The average size of a mature Arizona Ridgenose Rattlesnake is 1.5 - 2 feet in length.

Description

The Arizona Ridgenose Rattlesnake is a relatively small snake. The body of the snake is typically a chocolate to reddish-brown in color. There are narrow white crossbands that are edged in darker color. The crossbands are sometimes broken, appearing more as blotches. There are blotches/spots on the sides of the snake. Prominent white stripes run the length of the face. The nose has a row of upturned scales that form a ridge, which is where the snake gets its name.

The Arizona Ridgenose Rattlesnake has elliptical pupils that look like cat's eyes and like all pit vipers, has a heat-sensing pit between the nostril and eye on each side of its head. The Arizona Ridgenose Rattlesnake has a large, triangular head that is wider than the neck when viewed from above.

Distribution

In the United States, the Arizona Ridgenose Rattlesnake is found only in Arizona.
Map of US states the Arizona Ridgenose Rattlesnake is found in.
Map does not show area of true distribution, only the states in which there is a population.
Actual distribution in any highlighted state may be limited.

Arizona Ridgenose Rattlesnake
Photo used by permission:
© 2001 Jeff Miller

Arizona Ridgenose Rattlesnake
Photo used by permission:
© 2001 Jeff Miller

Arizona Ridgenose Rattlesnake
Photo used by permission:
© 2001 Jeff Miller

For more information on venomous snakes, please see the Venomous Links page.


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