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Coiba Island Howler Monkey, Panama (USNM 290565)
New World monkeys are primates and are more closely related to humans, apes and Old World monkeys than any other living nonhuman primate group. The Smithsonian Institution’s Division of Mammals (http://vertebrates.si.edu/mammals/) houses many New World monkeys in its scientific collections.
This specimen, USNM 290565 (http://collections.mnh.si.edu/search/mammals/?irn=7301698), is a male Coiba Island howler monkey (Alouatta coibensis coibensis) from Panama. This individual was collected in 1950 by H. C. Clark near Camp Maria Trial on Coiba Island.
This is a CT scan of the mandible of USNM 290565. 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.