Dusty Leaf Monkey, Thailand (USNM 83259)

USNM 83259

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 type specimen, USNM 83259 (http://collections.nmnh.si.edu/search/mammals/?irn=7235955), is a female dusty leaf monkey (Trachypithecus obscurus flavicauda) from Thailand. This individual was collect in 1896 by William Abbott near Trang Province In 1910, D. G. Elliot designated this individual the type specimen pygathrix flavicauda. This specimen weighed 11 lbs, had a total length of 1,257 mm, a tail length of 724 mm, and a head to body length of 533 mm.

This is a CT scan of the mandible of USNM 83259. 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.