Black-mantled tamarin

The black-mantled tamarin, Leontocebus nigricollis, is a species of saddle-back tamarin from the northwestern Amazon in far western Brazil, southeastern Colombia, north-eastern Peru and eastern Ecuador.

There are 3 subspecies:
 * Spix's black mantle tamarin, Leontocebus nigricollis nigricollis
 * Graells's tamarin or Graells' black-mantle tamarin, Leontocebus nigricollis graellsi
 * Hernandez-Camacho's black-mantle tamarin, Leontocebus nigricollis hernandezi

Graells's tamarin was previously considered to be a separate species.