Rattlesnakes (Crotalus) is a biological genus in the family Viperidae (Pit Vipers) and order Squamata (Squamates).
Crotalus cerberus
Crotalus lannomi
Crotalus durissus
Crotalus transversus
Crotalus basiliscus
Crotalus campbelli
Crotalus catalinensis
Crotalus tancitarensis
Crotalus tlaloci
Crotalus ornatus
Crotalus adamanteus
Crotalus scutulatus
Crotalus ericsmithi
Crotalus angelensis
Crotalus enyo
Crotalus armstrongi
Crotalus polystictus
Crotalus ravus
Crotalus intermedius
Crotalus simus
Crotalus oreganus
Crotalus culminatus
Crotalus stephensi
Crotalus aquilus
Crotalus ruber
Crotalus willardi
Crotalus lepidus
Crotalus lorenzoensis
Crotalus cerastes
Crotalus stejnegeri
Crotalus pyrrhus
Crotalus mitchellii
Crotalus morulus
Crotalus pusillus
Crotalus tigris
Crotalus horridus
Crotalus totonacus
Crotalus pricei
Crotalus vegrandis
Crotalus molossus
Crotalus atrox
Crotalus triseriatus
Crotalus viridis
Crotalus tzabcan
Agkistrodon
Atheris
Atropoides
Azemiops
Bitis
Bothriechis
Bothrocophias
Bothrops
Calloselasma
Causus
Cerastes
Cerrophidion
Daboia
Deinagkistrodon
Echis
Eristicophis
Garthius
Gloydius
Hypnale
Lachesis
Macrovipera
Sistrurus
Mixcoatlus
Montatheris
Montivipera
Ophryacus
Ovophis
Porthidium
Proatheris
Protobothrops
Pseudocerastes
Crotalus
Trimeresurus
Tropidolaemus
Vipera