The black-mantled tamarin[1] is a saddleback tamarin native to northwestern Amazonia in far western Brazil, eastern Ecuador, southeastern Colombia, and northeastern Peru.
- These South American tamarins have a black coat extending from their heads to the middle of their backs, fading to a reddish hue.
- The feet, hands, and tail are all black. They have hairless ears and whitish fur around the snout.
- Black-mantled tamarin that lives west of the Iquitos River differs from those that live east.
- West of Iquitos, they have blackish-gray olive forequarters, while the lower half is blackish-olive yellow.
- The tail length is between 356 and 361 mm, almost twice the length of the body. And the females weigh around 480g, which is 10g more than the males.
