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Sumatran Slow Loris, Indonesia (USNM 114460)

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 114460 (, is a male Sumatran slow loris (Nycticebus coucang hilleri) from Indonesia. This individual was collected by William Abbott in 1902 near Tapanuli Bay, located on the island of Sumatra. This specimen had a total length of 328 mm, a tail length of 16 mm, and a head to body length of 312 mm.

This is a CT scan of the cranium of USNM 114460. 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.