Black and White Ruffed Lemur (USNM 538407)

USNM 538407

Lemurs are primates and are more closely related to humans, apes and monkeys than any other living nonhuman primate group. The Smithsonian Institution’s Division of Mammals ( houses many lemurs in its scientific collections. 

This specimen, USNM 538407 (, is a male black and white ruffed lemur (Varecia variegata) collected in 1978. This individual had a tail length of 580 mm, a hind tarsus length of 125 mm, and an ear notch length of 38 mm.

This is a CT scan of the mandible of USNM 538407. 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.