Western diamondback rattlesnake - crotalus atrox.Eastern diamondback rattlesnake - crotalus adamanteus.
Western diamondback rattlesnake - crotalus atrox.Eastern diamondback rattlesnake - crotalus adamanteus.
Crotalus atrox is the western diamondback rattlesnake.
Both te eastern and western diamondbacks are from the crotalus genus:Eastern Diamondback Rattlesnake - Crotalus adamanteus
Western Diamondback Rattlesnake - Crotalus atrox
Crotalus horridus horridus is the scientific name for the timber rattlesnake.
No - they are from the same family (Crotalus) but are completely different snakes. The Timber Rattlesnake is a single species (Crotalus horridus) while the Diamond-back has three subspecies (Crotalus adamanteus, Crotalus atrox & Crotalus ruber)