In California:
Crotalus atrox
Crotalus cerastes
Crotalus cerastes cerastes
Crotalus cerastes laterorepens
Crotalus mitchellii
Crotalus mitchellii pyrrhus
Crotalus oreganus
Crotalus oreganus helleri
Crotalus oreganus lutosus
Crotalus oreganus oreganus
Crotalus ruber
Crotalus scutulatus
Crotalus scutulatus scutulatus
Crotalus stephensi
Fantastic diversity.
