Identification of venomous reptiles -- Key to the venomous reptiles of North America -- Helodermatidae: venomous lizards -- Heloderma suspectum, Gila monster -- Elapidae: elapid snakes -- Micruroides euryxanthus, Sonoran coral snake -- Micrurus fulvius, Harlequin coral snake -- Pelamis platurus, Yellow-bellied sea snake -- Viperidae: viperid snakes -- Agkistrodon contortrix, Copperhead -- Agkistrodon piscivorus, Cottonmouth -- Sistrurus catenatus, Massasauga -- Sistrurus miliarius, Pigmy rattlesnake -- Crotalus adamanteus, Eastern diamondback rattlesnake -- Crotalus atrox, Western diamond rattlesnake -- Crotalus cerastes, Sidewinder -- Crotalus horridus, Timber rattlesnake -- Crotalus lepidus, Rock rattlesnake -- Crotalus mitchelli, Speckled rattlesnake -- Crotalus molossus, Black-tailed rattlesnake -- Crotalus pricei, Twin-spotted rattlesnake -- Crotalus ruber, Red diamond rattlesnake -- Crotalus scutulatus, Mojave rattlesnake -- Crotalus tigris, Tiger rattlesnake -- Crotalus viridis, Western rattlesnake -- Crotalus willardi, Ridgenose rattlesnake.
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