Rattlesnake

Western diamondback rattlesnake
Crotalus atrox
Scientific classification
Kingdom Information
Domain |  Eukaryota
Kingdom |  Animalia
Subkingdom |  Bilateria
Branch |  Deuterostomia
Phylum Information
Phylum |  Chordata
Sub-phylum |  Vertebrata
Infraphylum |  Gnathostomata
Class Information
Superclass |  Tetrapoda
Class |  Reptilia
Sub-class |  Diapsida
Infra-class |  Lepidosauromorpha
Order Information
Superorder |  Lepidosauria
Order |  Squamata
Sub-order |  Serpentes
Family Information
Superfamily |  Colubroidea
Family |  Viperidae
Sub-family |  Crotalinae
Genus Information
Genera |  Crotalus
Sistrurus
Population statistics

Rattlesnake is the name given to 32 species of venomous snake native to the Americas, of which its primary characteristic is a set of disjointed noise-making scales on the end of their tails.[1]

## Contents

* 1 Species
* 2 Genus Crotalus
* 2.1 Genus Sistrurus
* 3 See also
* 4 References

## Species[edit]

## Genus Crotalus[edit]

Characterized by larger size vs. Sistrurus; presence of large number of smaller scales upon the head.

* Autlan rattlesnake, Crotalus lannomi
* Baja rattlesnake, Crotalus enyo
* Black-tailed rattlesnake, Crotalus molossus
* Catalina Island rattlesnake, Crotalus catalinensis
* Cross-banded mountain rattlesnake, Crotalus transversus
* Dusky rattlesnake, Crotalus triseriatus
* Eastern diamondback rattlesnake, Crotalus adamanteus
* Long-tail rattlesnake, Crotalus stejnegeri
* Mexican lancehead rattlesnake, Crotalus polystictus
* Mexican small-headed rattlesnake, Crotalus intermedius
* Mexican west coast rattlesnake, Crotalus basiliscus
* Middle American rattlesnake, Crotalus simus
* Mojave rattlesnake, Crotalus scutulatus
* Queretaran dusky rattlesnake, Crotalus aquilus
* Prairie rattlesnake, Crotalus viridis
* Red diamond rattlesnake, Crotalus ruber
* Ridge-nosed rattlesnake, Crotalus willardi
* Rock rattlesnake, Crotalus lepidus
* Speckled rattlesnake, Crotalus mitchellii
* Sidewinder, Crotalus cerastes
* South American rattlesnake, Crotalus durissus
* Tancitaran dusky rattlesnake, Crotalus pusillus
* Tiger rattlesnake, Crotalus tigris
* Timber rattlesnake, Crotalus horridus
* Tortuga Island diamond rattlesnake, Crotalus tortugensis
* Totonacan rattlesnake, Crotalus totonacus
* Twin-spotted rattlesnake, Crotalus pricei
* Western diamondback rattlesnake, Crotalus atrox
* Western rattlesnake, Crotalus oreganus

#### Genus Sistrurus[edit]

Characterized by generally-smaller size vs. Crotalus; presence of nine head-plate scales and a smaller rattle relative to the size of the snake, which produces a higher-pitched "buzzing" sound.

* Massasauga, Sistrurus catenatus
* Mexican pigmy rattlesnake, Sistrurus ravus
* Pigmy rattlesnake, Sistrurus miliarius

## See also[edit]

* Rattlesnake (American symbol)

## References[edit]

1. ↑ http://www.desertusa.com/may96/du_rattle.html