Crotalus willardi is the name given to a species of snake found in the southwest U.S. and Mexico. They are considered to be a venomous pit viper rattlesnake. It is really impossible to say how many of them have died since no statistics are kept.
Crotalus willardi.
Crotalus Horridus Horridus and Crotalus Horridus Atricaudatus for the southern "canebrake" race.
Crotalus atrox is the western diamondback rattlesnake.
Crotalus horridus was created in 1758.
Crotalus lepidus was created in 1861.
Crotalus durissus was created in 1758.
Crotalus adamanteus was created in 1799.
Crotalus atrox was created in 1853.
Western diamondback rattlesnake - crotalus atrox.Eastern diamondback rattlesnake - crotalus adamanteus.
Both te eastern and western diamondbacks are from the crotalus genus:Eastern Diamondback Rattlesnake - Crotalus adamanteusWestern Diamondback Rattlesnake - Crotalus atrox
California. It is home to 8 species of venomous snakes, all Rattlesnakes: Southern Pacific Rattlesnake (Crotalus viridis helleri) Great Basin Rattlesnake (Crotalus viridis lutosus) Northern Pacific Rattlesnake (Crotalus viridis oreganus) Western Diamondback Rattlesnake (Crotalus atrox) Red Diamondback (Crotalus ruber) Sidewinder (Crotalus cerastes) Speckled Rattlesnake (Crotalus mitchellii) And last but not least, the Mojave Rattlesnake (Crotalus scutalatus) Florida comes in second with six species of venomous snakes, three Rattlesnakes(Eastern Diamondback, Timber, and Pygmy) and three others(Copperhead, Water Moccasin, and Coral Snake).
There are two genera of rattlesnakes - Crotalus and Sistrurus. Each genus has a number of individual species such as:Crotalus viridis - prairie rattlesnakeCrotalus atrox - western diamondback rattlesnakeSistrurus catenatus - massasauga