Calabar Potto, Cameroon (USNM 511930)

USNM 511930

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

This specimen, USNM 511930 (, is a male calabar potto (Arctocebus calabarensis) from Cameroon. This individual was collected in 1975 by D. E. Wilson near Kumba. This individual had a total length of 270 mm, a tail length of 19 mm, a hind tarsus length of 41 mm, and an ear notch length of 25 mm.

This is a CT scan of the cranium of USNM 511930. 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.