massasauga rattlesnake (Phoenix Zoo - Arizona Trail)

massasauga rattlesnake

Sistrurus catenatus

Summary ⁷

The massasauga (Sistrurus catenatus) is a venomous pitviper species found primarily in the United States. Three subspecies are currently recognized, including the nominate subspecies described here.

Range description ⁸

The species' range extends discontinuously from the Great Lakes region of the United States (east to parts of southern Ontario (Canada) and a few sites in New York) southwest through the central and southern Great Plains region to southeastern Arizona (see Herpetological Review 21: 41), Texas Gulf Coast, and northeastern Mexico (Coahuila and Nuevo Leon) (Seigel 1986, Ernst and Barbour 1989, Stebbins 2003, Campbell and Lamar 2004). Its elevational range extends from sea level up to around 2,100 m asl (6,890 feet) (Stebbins 2003).

Iucn red list assessment ⁹

Red List Category

Least Concern

Red List Criteria

Version

3.1

Year Assessed

2007

Assessor/s

Frost, D.R., Hammerson, G.A. & Santos-Barrera, G.

Reviewer/s

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

Contributor/s

Justification

Listed as Least Concern in view of its wide distribution, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.

Sources and Credits

(c) Michael, some rights reserved (CC BY-NC), http://www.flickr.com/photos/28113115@N00/2902163222
(c) 2011 Todd Pierson, some rights reserved (CC BY-NC), http://calphotos.berkeley.edu/cgi/img_query?seq_num=347776&one=T
(c) 2011 Todd Pierson, some rights reserved (CC BY-NC), http://calphotos.berkeley.edu/cgi/img_query?seq_num=347777&one=T
(c) 2011 Todd Pierson, some rights reserved (CC BY-NC), http://calphotos.berkeley.edu/cgi/img_query?seq_num=347778&one=T
(c) 2011 Todd Pierson, some rights reserved (CC BY-NC), http://calphotos.berkeley.edu/cgi/img_query?seq_num=390280&one=T
(c) 2011 Todd Pierson, some rights reserved (CC BY-NC), http://calphotos.berkeley.edu/cgi/img_query?seq_num=390281&one=T
(c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Sistrurus_catenatus
(c) International Union for Conservation of Nature and Natural Resources, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/28331325
(c) International Union for Conservation of Nature and Natural Resources, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/28331324

More Info

Range Map

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