Ridge-nosed Rattlesnake (Crotalus willardi)
ARIZONA: Cochise Co; Huachuca Mountains - July 2020
ARIZONA: Cochise Co; Huachuca Mountains - August 2001 (scan from slide)
ARIZONA: Cochise Co; Huachuca Mountains - August 2000 (scans from slide)
ARIZONA: Santa Cruz Co; Santa Rita Mountains - July 2000 (scan from slide)