The Andean squirrel is a typical tree squirrel, in its general proportions resembling the Eastern grey squirrel of North America. However, it is much smaller, with a body length of only about 14 centimetres (5.5 in), and a 12 to 16 centimetres (4.7 to 6.3 in) tail. Although there are few records of its weight, it appears to be generally between about 100 and 140 grams (3.5 and 4.9 oz). It has soft, silky, reddish-brown fur over most of the body, merging to greyish-yellow on the underparts. The tail fur is darker than that on the body, and some Andean squirrels also have a distinctive dark stripe down their flanks, and/or a black patch on the back of the head. Females have six teats.
It inhabits montane rain forest and cloud forests of the Cordillera Occidental and Cordillera Central of the Colombian Andes, at elevations between 2,000 and 3,300 metres (6,600 and 10,800 ft). As a tree squirrel, it lives among Cecropia trees, palms, and tree ferns. It is believed to be diurnal, but sufficiently little is known about its habits, population, and habitat requirements, that it is currently listed as data deficient by the IUCN.
- Amori, G., Koprowski, J. & Roth, L. (2008). Sciurus pucheranii. In: IUCN 2008. IUCN Red List of Threatened Species. Retrieved 6 January 2009.
- Thorington, R.W., Jr.; Hoffmann, R.S. (2005). "Sciurus (Guerlinguetus) pucheranii". In Wilson, D.E.; Reeder, D.M. Mammal Species of the World: a taxonomic and geographic reference (3rd ed.). The Johns Hopkins University Press. pp. 754–818. ISBN 0-8018-8221-4. OCLC 26158608.
- Leonard, K.M. et al. (2009). "Sciurus pucheranii (Rodentia: Sciuridae)". Mammalian Species 841: 1–4. doi:10.1644/841.1.
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