Explore 36,937 Species
Mexican Lancehead Rattlesnake
Crotalus polystictus (Cope, 1865)
Crotalus polystictus is a venomous rattlesnake found on the central Mexican plat…
Western Diamond-backed Rattlesnake
Crotalus atrox Baird & Girard, 1853
Crotalus atrox, the western diamondback rattlesnake, is a large North American v…
Western Rattlesnake
Crotalus oreganus Holbrook, 1840
Crotalus oreganus is a North American rattlesnake with variable size, coloration…
Eastern Diamondback Rattlesnake
Crotalus adamanteus Palisot De Beauvois, 1799
This is the eastern diamondback rattlesnake, the largest rattlesnake species nat…
Queretaran Dusky Rattlesnake
Crotalus aquilus Klauber, 1952
Crotalus aquilus is a small, heavy-bodied rattlesnake found in highland habitats…
Basilisk Rattlesnake
Crotalus basiliscus (Cope, 1864)
Crotalus basiliscus is a large rattlesnake species native to the western Mexican…
Mexican Pygmy Rattlesnake
Crotalus ravus Cope, 1865
Crotalus ravus is a moderately stout rattlesnake found only in temperate high el…
Prairie Rattlesnake
Crotalus viridis Rafinesque, 1818
Crotalus viridis (prairie rattlesnake) is a North American rattlesnake with spec…
Central American Rattlesnake
Crotalus simus Latreille, 1801
Crotalus simus is a rattlesnake species found from Mexico to Colombia with docum…
Eastern Black-tailed Rattlesnake
Crotalus ornatus Hallowell, 1854
Crotalus ornatus is a medium-sized black-tailed rattlesnake native to the southw…
Campbell's Rattlesnake
Crotalus campbelli Bryson Jr, Linkem, Dorcas, Lathrop, Jones, Alvarado-Díaz, Grünwald & Murphy, 2014
Crotalus campbelli is a 2014-described Mexican rattlesnake found in rocky montan…
Western Black-tailed Rattlesnake
Crotalus molossus Baird & Girard, 1853
Crotalus molossus, the black-tailed rattlesnake, is a medium-sized venomous ratt…
Mexican Dusky Rattlesnake
Crotalus armstrongi Campbell, 1979
Crotalus armstrongi, the western dusky rattlesnake, is a small venomous pit vipe…
Southwestern Speckled Rattlesnake
Crotalus pyrrhus (Cope, 1866)
Crotalus pyrrhus is a variable-colored rattlesnake found in rocky habitats of th…
Tamaulipan Rock Rattlesnake
Crotalus morulus Klauber, 1952
Crotalus morulus is an ovoviviparous rattlesnake species with fluorescent rattle…
Speckled Rattlesnake
Crotalus mitchellii (Cope, 1861)
Crotalus mitchellii, the speckled rattlesnake, is a small North American desert …
Tehuantepec Isthmus Neotropical Rattlesnake
Crotalus ehecatl Carbajal-Márquez, Cedeño-Vázquez, Martínez-Arce, Neri-Castro & Machkour-M'Rabet, 2020
Crotalus ehecatl is a large sexually dimorphic rattlesnake endemic to specific r…
Brazilian Lancehead
Bothrops moojeni Hoge, 1966
Bothrops moojeni is a defensive viviparous viper found across central South Amer…
Terciopelo
Bothrops asper (Garman, 1883)
Bothrops asper is a highly sexually dimorphic pit viper widespread across lowlan…
Spotted Lancehead
Bothrops punctatus (Garcia, 1896)
Bothrops punctatus is a semiarboreal lance-headed pit viper found from Panama to…
Common Lancehead
Bothrops atrox (Linnaeus, 1758)
Bothrops atrox, the common South American terrestrial pit viper, is a common non…
Jararacussu
Bothrops jararacussu Lacerda, 1884
Bothrops jararacussu, the jararacussu, is a large venomous pit viper found in fo…
Whitetail Lancehead
Bothrops leucurus Wagler, 1824
Bothrops leucurus is a terrestrial viviparous pit viper found along the Atlantic…
Marbled lancehead
Bothrops marmoratus Da Silva & Rodrigues, 2008
Bothrops marmoratus, the marbled lancehead, is a nocturnal viviparous viper spec…
