Isothrix
The toros or brush-tailed rats, genus ''Isothrix'', are a group of Echimyidae, spiny rats found in tropical South America, particularly in the Amazon Basin.Nowak, Ronald M. 1999. ''Walker's Mammals of the World'', 6th edition. Johns Hopkins University Press, 1936 pp.  Description Toros look like large rats with soft fur on the body and long guard hairs on the scaly tail.Emmons, L.H. 2005. A Revision of the Genera of Arboreal Echimyidae (Rodentia: Echimyidae, Echimyinae), With Descriptions of Two New Genera. pp. 247–310 in Lacey, E.A. & Myers, P. 2005. Mammalian Diversification: From Chromosomes to Phylogeography (A Celebration of the Career of James L. Patton). University of California Publications in Zoology. Head and body is 18-27.5 cm and tail is 17–30 cm. Weight is 320-570 grams. Natural history These animals appear to be arboreal, based on the shape of their hind feet. They are thought to spend the day in holes in the ground near trees. Systema ...
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