Sumatran Slow Loris, Indonesia (USNM 141141)

USNM 141141

Lorises 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 lorises in its scientific collections.

This specimen, USNM 141141 (, is a female Sumatran slow loris (Nycticebus coucang hilleri) from Indonesia. This individual was collected by William Abbott in 1905 near Tarussan Bay, located on the island of Sumatra. This specimen had a total length of 317 mm, a tail length of 17 mm, a hind tarsus length of 64 mm, and a head to body length of 300 mm.

This is a CT scan of the cranium of USNM 141141. 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.