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. References black-mantled tamarin Mammals of Brazil Mammals of Colombia Mammals of Peru black-mantled tamarin Taxa named by Johann Baptist von Spix