Siamang, Indonesia (USNM 114497)

USNM 114497

Siamangs are apes and one of our closest living relatives. The Smithsonian Institution’s Division of Mammals ( houses many siamangs in its scientific collections.

This specimen, USNM 114497(, is a female siamang (Symphalangus syndactylus) from Indonesia. This individual was collected  by William Abbott near Tapanuli Bay on the island of Sumatra. This female weighed 23.75 lbs, had a head to body length of 500 mm and had a total length of 565 mm.

This is a CT scan of the cranium of USNM 114497. 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 relatives, the apes, available in 3D for education and research.