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Putty-Nosed Monkey, Liberia (USNM 481770)
Old World monkeys are primates and are more closely related to humans and apes than any other living nonhuman primate group. The Smithsonian Institution’s Division of Mammals (http://vertebrates.si.edu/mammals/) houses many Old World monkeys in its scientific collections.
This specimen, USNM 481770 (http://collections.mnh.si.edu/search/mammals/?irn=7360716), is a male putty-nosed monkey (Cercopithecus nictitans martini) from Liberia. This individual was collected by D. A. Schlitter in 1971 near Tars Town in Grand Gedeh Province. This individual weighed 15 lbs, had a total length of 1460 mm, a tail length of 900 mm, a hind tarsus length of 166 mm, and an ear notch length of 34 mm.
This is a CT scan of the mandible of USNM 481770. These three-dimensional scans are made publicly available through the generous support of the Smithsonian 2.0 Fund, provided from the annual gifts of the Smithsonian National Board to the Secretary to use at his discretion (http://smithsonian20.si.edu/fund.html), and the Smithsonian Collections Care and Preservation Fund.