Project Noah

Project Noah is a tool to explore and document wildlife and a platform to harness the power of citizen scientists everywhere.

Join Project Noah Today

Eastern diamondback rattlesnake

Crotalus adamanteus


lengths of 3.5 to 5.5 feet (1.1 to 1.7 m), and 2.75 to 6 feet (0.8 to 1.8 m) are given. One study found an average length of 5.6 feet (1.7 m) based on 31 males and 43 females. The average body mass is 2.3 kg (5.1 lb). Few specimens can exceed 5.12 kg (11.3 lb), although exceptional specimens can weigh 6.7 kg (15 lb) or more.


C. adamanteus is found in the southeastern United States from southeastern North Carolina, south along the coastal plain through peninsular Florida to the Florida Keys, and west along the Gulf Coast through southern Alabama and Mississippi to southeastern Louisiana. The original description for the species does not include a type locality, although Schmidt (1953) proposed it be restricted to "Charleston, South Carolina" (USA).


About 4-5ft long. Saw at the Houston zoo.

No species ID suggestions

Houston, Texas, USA

Lat: 29.71, Long: -95.39

Spotted on Sep 14, 2011
Submitted on Apr 4, 2012

Related spottings

Mojave rattlesnake Black-tailed rattlesnake Timber Rattle Snake Black-tailed Rattlesnake

Nearby spottings

Unnamed spotting West African gaboon viper Spotted Jelly Galapagos Tortoise