Tamarin n. : Any one of several species of small squirrel-like South American monkeys of the genus Midas, especially M. ursulus.

Example:
What does exactly golden lion Tamarin eat ?

Taxonomy
Tamarins, Saguinus fuscicollis, Saguinus, lion tamarins, genus, species, Saguinus mystax, family, free encyclopedia, Saguinus nigricollis, Saguinus martinsi, the New World, Kingdom, Phylum, marmosets, Saddle-back Tamarin, New World monkey, tropical plant.

Defination from the web:
Tamarin habitats range from southern Central America (Costa Rica) through middle South America (Amazon basin and north Bolivia, however not in the mountainous parts) ... Geoffroy's Saddle-back Tamarin, Saguinus fuscicollis nigrifrons. Illiger's Saddle-back Tamarin, Saguinus fuscicollis illigeri ...