Crotalus willardi obscurus

Animas Ridge-nosed Rattlesnake

FWS Focus


This is a small (maximum length 66 cm) montane species that is usually pale gray to gray-brown and does not have prominent facial markings. The back is marked with pale crossbars lined with darker coloration along the front and back edges. The underside is cream to white with occasional mottling of grayish to reddish brown.Young have dark gray/black or light yellow tails.

Scientific Name

Crotalus willardi obscurus
Common Name
Animas Ridge-nosed Rattlesnake
New Mexico Ridgenose Rattlesnake
New Mexico Ridge-Nosed Rattlesnake
New Mexican ridge-nosed rattlesnake
FWS Category

Location in Taxonomic Tree

Identification Numbers



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