[5][6][3] The Coiba Island howler, the black-headed spider monkey, the Panamanian night monkey (Aotus zonalis), the Colombian white-faced capuchin (Cebus capucinus) and Geoffroy's tamarin (Saguinus geoffroyi) are each found in only one Central American country, Panama.
[7][8][9][10][3] The Central American squirrel monkey (Saimiri oerstedii) also has a restricted distribution, living only on part of the Pacific coast of Costa Rica and a small portion of Panama.
Geoffroy's tamarin is the smallest Central American monkey, with an average size of about 0.5 kilograms (1.1 lb).
[4][17] The Central American squirrel monkey had been considered endangered, but its conservation status was upgraded to vulnerable in 2008.
[7] The white-faced capuchins, the mantled howler and Geoffroy's tamarin are all considered to be of least concern from a conservation standpoint.
[19][25] In Belize, the easily explored Community Baboon Sanctuary was established specifically for the preservation of the Yucatán black howler and now contains more than 1000 monkeys.