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Western diamondback.jpg
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
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]


Genus Crotalus

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

Genus Sistrurus

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.

See also