Explore 36,937 Species
Mexican Cantil
Agkistrodon bilineatus Günther, 1863
Agkistrodon bilineatus, the cantil, is a heavy-bodied ovoviviparous viper found …
Northern Cottonmouth
Agkistrodon piscivorus (Lacépède, 1789)
Agkistrodon piscivorus, the cottonmouth, is a large venomous North American pit …
Florida Cottonmouth
Agkistrodon conanti Gloyd, 1969
Agkistrodon conanti, the Florida cottonmouth, is a North American pit viper desc…
Broad-banded Copperhead
Agkistrodon laticinctus Gloyd & Conant, 1934
This is a description of the broad-banded copperhead, Agkistrodon laticinctus, c…
Eastern Copperhead
Agkistrodon contortrix (Linnaeus, 1766)
This is a detailed morphological, distributional, and reproductive description o…
Chinese Moccasin
Deinagkistrodon acutus (Günther, 1888)
This page describes the morphology, distribution, habitat, reproduction, and ven…
Neotropical Rattlesnake
Crotalus durissus Linnaeus, 1758
Crotalus durissus is a large Neotropical South American rattlesnake with a seaso…
Totonacan Rattlesnake
Crotalus totonacus Gloyd & Kauffeld, 1940
Crotalus totonacus is a venomous pitviper found in northeastern Mexico, with adu…
Yucatán Neotropical Rattlesnake
Crotalus tzabcan Klauber, 1952
The Yucatán neotropical rattlesnake (Crotalus tzabcan) is a Viperidae pit viper …
Northwestern Neotropical Rattlesnake
Crotalus culminatus Klauber, 1952
Crotalus culminatus, the Northwestern Neotropical rattlesnake, is a large venomo…
Ridge-nosed Rattlesnake
Crotalus willardi Meek, 1905
Crotalus willardi is a small, reclusive high-elevation rattlesnake native to sou…
Arizona Black Rattlesnake
Crotalus cerberus (Coues, 1875)
Crotalus cerberus, the Arizona black rattlesnake, is a pit viper found in the so…
Mojave Rattlesnake
Crotalus scutulatus Kennicott, 1861
This is a detailed description of the Mohave Rattlesnake, Crotalus scutulatus, c…
Dusky Rattlesnake
Crotalus triseriatus Wagler, 1830
Crotalus triseriatus is a small Mexican rattlesnake found in highland habitats o…
Red Diamond Rattlesnake
Crotalus ruber Cope, 1892
Crotalus ruber (red diamond rattlesnake) is a moderately large reddish rattlesna…
Twin-spotted Rattlesnake
Crotalus pricei Van Denburgh, 1895
Crotalus pricei is a small rattlesnake found in southeastern Arizona and norther…
Panamint Rattlesnake
Crotalus stephensi Klauber, 1930
Crotalus stephensi is a rattlesnake species native to mid-elevation desert mount…
Rock Rattlesnake
Crotalus lepidus Kennicott, 1861
Crotalus lepidus Kennicott, 1861 is a small ovoviviparous rattlesnake found in t…
Mexican Smallhead Rattlesnake
Crotalus intermedius Troschel, 1865
Crotalus intermedius is a small rattlesnake found in central and southern Mexico…
Timber Rattlesnake
Crotalus horridus Linnaeus, 1758
Crotalus horridus, the timber rattlesnake, is a venomous snake native to eastern…
Lower California Rattlesnake
Crotalus enyo Cope, 1861
Crotalus enyo is a small-headed rattlesnake found in Baja California and surroun…
Sidewinder
Crotalus cerastes Hallowell, 1854
Crotalus cerastes, or sidewinder/horned rattlesnake, is a small desert viper wit…
Cross-banded Mountain Rattlesnake
Crotalus transversus Taylor, 1944
Crotalus transversus Taylor, 1944 is a rattlesnake found only in high-elevation …
Tiger Rattlesnake
Crotalus tigris Kennicott, 1859
Crotalus tigris (tiger rattlesnake) is a small rattlesnake native to the southwe…
