Stuhlmann's Blue Monkey, Kenya (USNM 452531)

USNM 452531

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 ( houses many Old World monkeys in its scientific collections. 

This specimen, USNM 452531 (, is a female Stuhlmann's blue monkey (Cercopithecus mitis stuhlmanni) from Kenya. This individual was collected in 1960 by C. P. Booth in Marindas Forest Reserve. This individual weighed 8.17 lbs, had a total length of 1025 mm, a tail length of 578 mm, and a hind tarsus length of 131 mm

This is a CT scan of the mandible of USNM 452531. 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 (, 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.