:''Common names: Omilteman small-headed rattlesnake.Klauber LM. 1997. Rattlesnakes: Their Habitats, Life Histories, and Influence on Mankind. Second Edition. First published in 1956, 1972. University of California Press, Berkeley. .'' ''Crotalus intermedius omiltemanus'' is a

venomous Venom or zootoxin is a type of toxin produced by an animal that is actively delivered through a wound by means of a bite, sting, or similar action. The toxin is delivered through a specially evolved ''venom apparatus'', such as fangs or a ...

pitviper The Crotalinae, commonly known as pit vipers,Mehrtens JM (1987). ''Living Snakes of the World in Color''. New York: Sterling Publishers. 480 pp. . crotaline snakes (from grc, κρόταλον ''krotalon'' castanet), or pit adders, are a subf ...

subspecies found in

Mexico Mexico ( Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guate ...

in the state of

Guerrero Guerrero is one of the 32 states that comprise the Administrative divisions of Mexico, 32 Federal Entities of Mexico. It is divided in Municipalities of Guerrero, 81 municipalities and its capital city is Chilpancingo and its largest city is Acap ...

Description

This subspecies can be distinguished from the typical form ('' C. i. intermedius'') by its

ventral scale In snakes, the ventral scales or gastrosteges are the enlarged and transversely elongated scales that extend down the underside of the body from the neck to the anal scale. When counting them, the first is the anteriormost ventral scale that conta ...

count: 164 or more in males, and 170 or more in females.

Geographic range

Found in

, in

, in several places west of

Chilpancingo Chilpancingo de los Bravo (commonly shortened to Chilpancingo; ; Nahuatl: Chilpantsinko) is the capital and second-largest city of the state of Guerrero, Mexico. In 2010 it had a population of 187,251 people. The municipality has an area of in ...

, in the

Sierra Madre del Sur The Sierra Madre del Sur is a mountain range in southern Mexico, extending from southern Michoacán east through Guerrero, to the Isthmus of Tehuantepec in eastern Oaxaca. Geography The Sierra Madre del Sur joins with the Eje Volcánico Trans ...

mountains, including the areas that surround Omilteme, San Vincente, and Filo de Caballo. The

type locality Type locality may refer to: * Type locality (biology) * Type locality (geology) See also * Local (disambiguation) * Locality (disambiguation) {{disambiguation ...

given is "Mexico, Omilteme in Guerrero."Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. .

References

External links

* {{Taxonbar, from=Q5188949 intermedius omiltemanus Endemic reptiles of Mexico Reptiles described in 1895 Taxa named by Albert Günther Fauna of the Sierra Madre del Sur