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Proboscis Monkey, Indonesia (USNM 142217)
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 142217 (http://collections.mnh.si.edu/search/mammals/?irn=7251038), is a male proboscis monkey (Nasalis larvatus) from Indonesia. This individual was collected in 1905 by William Abbott near the Kapuas River below Tyan on the island of Borneo. This specimen weighed 52 lbs and measured 1,430 mm in total length. The tail measured 725 mm long, a head to body length of 705 mm and the hind tarsus length of 232 mm.
This is a CT scan of the cranium of USNM 142217. 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.
The main goal of this joint initiative between the Human Origins Program and the Division of Mammals is to make the NMNH's scientific collections of our closest living nonhuman primate relatives available in 3D for education and research.