speckled rattlesnake (Phoenix Zoo - Arizona Trail)

speckled rattlesnake

Crotalus mitchellii

Summary ⁷

Crotalus mitchellii is a venomous pit viper species found in the Southwestern United States and northern Mexico. It was named in honor of Silas Weir Mitchell (1829-1914), a medical doctor who also studied rattlesnake venoms. Five subspecies are currently recognized, including the nominate subspecies described here.

Range description ⁸

This snake is endemic to the island of El Muerto, in the Gulf of California, Mexico.

Iucn red list assessment ⁹

Red List Category

Least Concern

Red List Criteria

Version

3.1

Year Assessed

2007

Assessor/s

Frost, D.R.

Reviewer/s

Cox, N., Chanson, J.S. & Stuart, S.N. (Global Reptile Assessment Coordinating Team)

Contributor/s

Justification

Listed as Least Concern because, although it is known from only one island, the island where it occurs is not known to be inhabited by humans. The species is not considered to be at particular risk from invasive species introductions or from hurricanes and other natural disasters.

Fuentes y créditos

(c) Kerry Matz, algunos derechos reservados (CC BY-NC-SA), http://www.flickr.com/photos/47456931@N07/4504919891
(c) Athene cunicularia 16:54, 28 March 2008 (UTC). Original uploader was Athene cunicularia at en.wikipedia, algunos derechos reservados (CC BY-SA), https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/Crotalus-mitchellii.jpg/460px-Crotalus-mitchellii.jpg
Original uploader was Jamidwyer at en.wikipedia, sin restricciones conocidas de derechos (dominio publico), https://upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Speckledrattlesnake.jpg/460px-Speckledrattlesnake.jpg
(c) 1999 California Academy of Sciences, algunos derechos reservados (CC BY-NC-SA), http://calphotos.berkeley.edu/cgi/img_query?seq_num=1081&one=T
(c) 1999 California Academy of Sciences, algunos derechos reservados (CC BY-NC-SA), http://calphotos.berkeley.edu/cgi/img_query?seq_num=1082&one=T
(c) skystevens, algunos derechos reservados (CC BY-NC), subido por skystevens
(c) Wikipedia, algunos derechos reservados (CC BY-SA), http://en.wikipedia.org/wiki/Crotalus_mitchellii
(c) International Union for Conservation of Nature and Natural Resources, algunos derechos reservados (CC BY-NC-SA), http://eol.org/data_objects/28077683
(c) International Union for Conservation of Nature and Natural Resources, algunos derechos reservados (CC BY-NC-SA), http://eol.org/data_objects/28077682