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Putty-Nosed Monkey, Cameroon (USNM 480838)
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 480838 (http://collections.mnh.si.edu/search/mammals/?irn=7359784), is a greater spot-nosed monkey or putty-nosed monkey (Cercopithecus nictitans martini) from Cameroon. This individual was collected by W. E. Kershaw in Kumba Division of Sud-Ouest Province.
This is a CT scan of the mandible of USNM 480838. 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.