Reviewed (23/02/2007) by Robert, P. Anderson, Assistant Professor, Department of Biology, City College of New York, and Research Associate, American Museum of Natural History. http://web.sci.ccny.cuny.edu/~anderson/
Anderson, R.P. and Handley Jr., C.O. (2001) A new species of three-toed sloth (Mammalia: Xenarthra) from Panama, with a review of the genus Bradypus. Proceedings of the Biological Society of Washington, 114 (1): 1 - 33.