Smithsonian National Museum of Natural History, North American Mammals
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  Rodentia · Cricetidae · Sigmodon alleni
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Sigmodon alleni

Allen's Cotton Rat

Order: Rodentia
Family: Cricetidae


Conservation Status: Vulnerable. Loss of habitat puts this population at risk.

Allen's Cotton Rats are found from near sea level along Mexico's Pacific coast to as high as 3,050 m. in the mountains. They seem to prefer moist, vine- or shrub-covered slopes. Their grass nests have been found in rotten logs, under rocks or piles of bark, and in clumps of grass. These furry-tailed grass-eaters are the most tropical cotton rats.

Range: Head and Body: 139-152 mm


Bailey, V., 1902. Proceedings of the Biological Society of Washington, 15:112.


Mammal Species of the World

Mammalian Species, American Society of Mammalogists' species account

Distribution of Sigmodon alleni