The maximum reported length considered to be reliable is 213 cm (7 ft).
Western Diamondback Rattlesnake.The western diamondback rattlesnake.The Western Diamondback Rattlesnake. The genus Crotalus refers to rattlesnakes, and the genus Sistrurus to pygmy rattlesnakes, differentiated by size and 9 large scales on the top of their head.The Western Diamondback Rattlesnake. The genus Crotalus refers to rattlesnakes, and the genus Sistrurus to pygmy rattlesnakes, differentiated by size and 9 large scales on the top of their head.
The western diamondback rattlesnake (Crotalus atrox) lives in the deserts in the western United States.
For a range map of the western diamondback rattlesnake, click on this link.
There are two species, the eastern diamondback, and the western diamondback.
Eukaryote
Animalia
A large western rattler, second only to the eastern diamondback in size. Large, diamond shaped markings on the back.
The eastern diamondback is found in the southeastern United States and the western diamondback is found in the southwestern United States and northern Mexico.
Baby western diamondbacks are usually about 12 inches in length. Eastern diamondbacks may be slightly larger.
Western diamondback rattlesnake - crotalus atrox.Eastern diamondback rattlesnake - crotalus adamanteus.
The western diamondback lives in the southwestern United States and Mexico. The eastern diamondback lives in the southeastern United States. To view a range map of the two species click on this link.
The eastern diamondback rattlesnake is the largest snake in North America, followed by the western diamondback. The eastern can reach eight feet in length, the western, seven.