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Loris, Sri Lanka (USNM 256739)
Lorises 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 lorises in its scientific collections.
This specimen, USNM 256739 (http://collections.mnh.si.edu/search/mammals/?irn=7289094), is a male grey slender loris (Loris lydekkerianus) from Sri Lanka. This individual was collected in 1931 by W. Schofield near Nikeweratiya in the North Western Province.
This is a CT scan of the mandible of USNM 256739. 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.