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Crotalus pusillus
Species of snake From Wikipedia, the free encyclopedia
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Crotalus pusillus, or the Tancitaran Dusky Rattlesnake, is a venomous pit viper species found in west-central Mexico. No subspecies are currently recognized.[3]
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Description
Adult males may grow to more than 50 cm (20 in) in length, while females are smaller. The largest recorded length for a specimen was 68.2 cm (26.9 in).[4]
Behavior
Campbell and Lamar (2004) found this species only to be active during the day. Within its range, night temperatures are low and seem to restrict its activity.[4]
Geographic range
It is found in west-central Mexico in the Sierra de Coalcomán of southwestern Michoacán, the Transverse Volcanic Cordillera of west-central Michoacán, and in adjacent Jalisco. It is probably also found in northeastern Colima. Its type locality is reported as "Tancítaro, Michoacán, Mexico, altitude 5,000 ft" (5,000 ft = 1,524 m).[2] It occurs at elevations between 1,525 and 2,380 metres (5,003 and 7,808 ft).[4]
Conservation status
This species is classified as Endangered on the IUCN Red List of Threatened Species. The population trend was unknown when assessed in 2007.[5]
References
Further reading
External links
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