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2011 Todd Pierson   cc-by-nc

Crotalus willardi (Arizona ridge-nosed rattlesnake) is a species of Serpentes in the family Viperidae. It is found in the Nearctic. Individuals are known to live for 21.3 years.

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EOL has data for 11 attributes, including:

Known occurrences, collected specimens and observations of Arizona ridge-nosed rattlesnake