ridgenose rattlesnake

Tyrpak, C. 1994. Ridgenose rattlers: Enigma in the Animas. New Mexico Wildlife. 39(2):19.

• Crotalus willardi obscurus
• ridgenose rattlesnake

Painter, C. 1999. Status of New Mexico Ridgenose Rattlesnake. Performance report to U.S. Fish and Wildlife Service, Section 6 E-23-7. New Mexico Department of Game and Fish, 10 p.

• ridgenose rattlesnake
• Crotalus willardi obscurus

Painter, C. 1998. Status of New Mexico Ridgenose Rattlesnake. Performance report to U.S. Fish and Wildlife Service, Section 6 E-23-6. New Mexico Department of Game and Fish, 20 p.

• ridgenose rattlesnake
• Crotalus willardi obscurus
• Crotalus lepidus klauberi
• Banded Rock Rattlesnake
• Lampropeltis knoblochi
• Knobloch's mountain kingsnake

Painter, C. 2000. Status of New Mexico Ridgenose Rattlesnake. Performance report to U.S. Fish and Wildlife Service, Section 6 E-23-8. New Mexico Department of Game and Fish, 123 p.

• ridgenose rattlesnake
• Crotalus willardi obscurus

Painter, C. 1997. Status of New Mexico Ridgenose Rattlesnake. Performance report to U.S. Fish and Wildlife Service, Section 6 E-23-5. New Mexico Department of Game and Fish, 51 p.

• ridgenose rattlesnake
• Crotalus willardi obscurus

Barker, D.G. 1991. An investigation of the natural history of the New Mexico ridgenose rattlesnake, Crotalus willardi obscurus. 100 p.

• Crotalus willardi obscurus
• New Mexico ridgenose rattlesnake
• ridgenose rattlesnake
• Crotalus willardi