Crotalus & Sistrurus:
Rattlesnakes belong to the family of the pitvipers, the
reason for its is that they have an opening between the eye and the nostril,
the so-called pit. With this pit the rattlesnake are able too detect a
differences in temperature of 0.003C.
Rattlesnakes habitat range from Canada throught too South
America. There are 26 species of rattlesnakes and all have their subspecies
including the Sistrurus species.
Rattlesnakes are solenoglyphs = two folding fangs in the
upper jaw in the front of their mouths. The hollow teeth are folded in
but during an attack the snake opens its mouth and folds out the fangs
and will stab a prey animal and inject its venom. The venom of most rattlesnakes
are of a haemotoxin nature, but some also have neorotoxins. Both can be
deadly for humans.
Crotalus abyssus - Grand Canyon rattlesnake
Crotalus adamanteus - Eastern Diamondback rattlesnake
Crotalus aquilus - Quertaran Blotched rattlesnake
Crotalus atrox - Western Diamondback rattlesnake
Crotalus basilicus - Mexican West-coast rattlesnake
Crotalus catalinensis - Santa Catalina Island rattlesnake
Crotalus cerastes cerastes - Mojave Desert sidewinder
Crotalus cerestes cercobombus - Sonoran Desert sidewinder
Crotalus cerestes laterorepens - Colorado Desert sidewinder
Crotalus cerberus - Arizona Black rattlesnake
Crotalus concolor - Midget Faded rattlesnake
Crotalus durissus cascavella - Northeastern Brazilian rattlesnake
Crotalus durissus collilineatus - Central Brazilian rattlesnake
Crotalus durissus culminates - Northwestern Neotropical rattlesnake
Crotalus durissus cumanensis - Venezuelan rattlesnake
Crotalus durissus dryinus - Guianian rattlesnake
Crotalus durissus durissus - Neotropical rattlesnake
Crotalus durissus marajoensis - Marajoan rattlesnake
Crotalus durissus neoleonensis - Nuevo Leon Neotropical rattlesnake
Crotalus durissus ruruima - Mount Roraima
Crotalus durissus terrificus - South American rattlesnake
Crotalus durissus totonacus - Totonacan rattlesnake
Crotalus durissus trigonicus - Rupunini rattlesnake
Crotalus durissus tzabcan - Yucatan neotropical rattlesnake
Crotalus enyo cerralvensis - Cerralvo Island rattlesnake
Crotalus enyo enyo Baja - California rattlesnake
Crotalus enyo furvus - Rosario rattlesnake
Crotalus exsul - Cedros Island Diamond rattlesnake
Crotalus helleri caliginis - Coronado Island rattlesnake
Crotalus helleri helleri - Southern Pacific rattlesnake
Crotalus horridus atricaudatus - Canebrake rattlesnake
Crotalus horridus horridus - Timber rattlesnake
Crotalus intermedius gloyd - Oaxacan Small-headed rattlesnake
Crotalus intermedius intermedius - Totalcan Small-headed rattlesnake
Crotalus intermedius omiltemanus - Omilteman Small-headed rattlesnake
Crotalus lannomi - Autlan rattlesnake
Crotalus lepidus castenaeus - Nuevo Leon Rock rattlesnake
Crotalus lepidus klauberi - Banded Rock rattlesnake
Crotalus lepidus lepidus - Mottled Rock rattlesnake
Crotalus lepidus maculosus - Durango Rock rattlesnake
Crotalus lepidus morulus - Tamaulipan Rock rattlesnake
Crotalus lutosus - Great Basin rattlesnake
Crotalus mitchelli angelensis - Angel de la Guarda Island Speckled rattlesnake
Crotalus mitchelli mitchelli - San Lucan Speckled rattlesnake
Crotalus mitchelli muertensis - El Muerto Island rattlesnake
Crotalus mitchelli pyrrhus - Southwestern Speckled rattlesnake
Crotalus mitchelli stephensi - Panamint Speckled rattlesnake
Crotalus molossus estebanensis - San Esteban Island Blacktail rattlesnake
Crotalus molossus molossus - Northern Blacktail rattlesnake
Crotalus molossus nigrescens - Mexican Blacktail rattlesnake
Crotalus molossus oaxacus - Oaxacan Blacktail rattlesnake
Crotalus oreganus - Northern Pacific rattlesnake
Crotalus pifanorum - Venezuela Guarico rattlesnake
Crotalus polystictus - Mexican Lance-headed rattlesnake
Crotalus pricei miquihuanus - Eastern Twin-spotted rattlesnake
Crotalus pricei pricei - Western Twin-spotted rattlesnake
Crotalus pusillus - Tancitaran Dusky rattlesnake
Crotalus ruber elegans - No Found Common Name
Crotalus ruber monserratensis - No Found Common Name
Crotalus ruber lorenzoensis - San Lorenzo Island Diamond rattlesnake
Crotalus ruber lucasensis - San Lucan Island Diamond rattlesnake
Crotalus ruber ruber - Red Diamond rattlesnake
Crotalus scutulatus salvini - Humantlan rattlesnake
Crotalus scutulatus scutulatus - Mojave rattlesnake
Crotalus stejnegeri - Long-tailed rattlesnake
Crotalus tigris - Tiger rattlesnake
Crotalus tortugensis - Tortuga Island Diamond rattlesnake
Crotalus transversus - Cross-banded Mountain rattlesnake
Crotalus triseriatus armstrongi - Mexican Dusky rattlesnake
Crotalus triseriatus triseriatus - Central Plateau Dusky rattlesnake
Crotalus unicolor - Aruba Island rattlesnake
Crotalus vegrandis - Uracoan rattlesnake
Crotalus viridis nuntius - Hopi rattlesnake
Crotalus viridis viridis - Prairie rattlesnake
Crotalus williardi amabilis - Del Nido ridgenose rattlesnake
Crotalus williardi meridionalis - Southern Ridgenose rattlesnake
Crotalus williardi obscurus - New Mexican Ridgenose rattlesnake
Crotalus williardi silus western - Chihuahuan Ridgenose rattlesnake
Crotalus williardi williardi - Arizona Ridgenose rattlesnake
Sistrurus:
Sistrurus catenatus catenatus - Eastern massasauga
Sistrurus catenatus edwardsii - Desert-grassland massasauga
Sistrurus catenatus tergeminus - Western massasauga
Sistrurus miliarius barbouri - Dusky Pigmy rattlesnake
Sistrurus miliarius miliarius - Carolina Pigmy rattlesnake
Sistrurus miliarius streckeri - Western Pigmy rattlesnake
Sistrurus ravus brunneus - Oaxacan Pigmy rattlesnake
Sistrurus ravus exiguus - Guerreran Pigmy rattlesnake
Sistrurus ravus ravus - Central Plateau Pigmy rattlesnake
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