. . "Saguinus nigricollis (Spix 1823)" . . . . . . . "Saguinus" . . . . . . "Black-mantled Tamarin" . "(Spix 1823)" . "Chordata" . "Cebidae" . "Saguinus nigricollis" . . "Primates" . . . "Animalia" . "Mammalia" .