New Mexico Ridge-nosed Rattlesnake
Crotalus willardi obscurus
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- C. w. obscurus – Hidalgo Co, NM – photo by Maria Covell
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- C. w. obscurus – Hidalgo Co, NM – photo by Maria Covell
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- C. w. obscurus – Hidalgo Co, NM – photo by Scott Trageser
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- C. w. obscurus – Hidalgo Co, NM – photo by Scott Trageser
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- C. w. obscurus – Hidalgo Co, NM – photo by Will Wells
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- C. w. obscurus – Map by Tom Lott, SWCH
DISTRIBUTION: In our region, Crotalus w. obscurus occurs only from Hidalgo County in Southwestern New Mexico and from the Peloncillo Mountains of Cochise County in the southeastern corner of Arizona.
LEGAL STATUS: Crotalus w. obscurus is protected as a Threatened Species by Federal law and is also listed as an Endangered Species by the State of New Mexico. It is also protected by the State of Arizona.
MEANING OF SCIENTIFIC NAME: Crotalus willardi obscurus (Harris & Simmons – 1976)
Genus: Crotalus, Greek – krotalon = a rattle ref. rattle on tail
Species: willardi, honors Frank C. Willard
Subspecies: obscurus, Latin = dusky
Ref. Ellen Beltz 2006
Ref. E. Jaeger 1962