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Golden Lion Tamarin, Brazil (USNM 337334)
New World monkeys are primates and are more closely related to humans, apes and Old World monkeys than any other living nonhuman primate group. The Smithsonian Institution’s Division of Mammals (http://vertebrates.si.edu/mammals/) houses many New World monkeys in its scientific collections.
This specimen, USNM 337334 (http://collections.mnh.si.edu/search/mammals/?irn=7312847), is a female golden lion tamarin (Leontopithecus rosalia) from Brazil. This individual was collected in 1963 near Rio De Janeiro.
This is a CT scan of the cranium of USNM 337334. 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 (http://smithsonian20.si.edu/fund.html), and the Smithsonian Collections Care and Preservation Fund.