Saguinus graellsi Jimenez de la Espada 1870
Saguinus graellsi Jimenez de la Espada 1870, Bol. Rev. Univers. Madrid: 19.
Type Locality: Peru, Loreto, Tarapoto, opposite mouth of Rio Curaray, Rio Napo.
Vernacular Names: Graells's Tamarin.
Distribution: Peru, Ecuador, Colombia, west of Rio Napo, from Rio Putumayo south to Rio Marañon, west to Rio Santiago.
Conservation: CITES – Appendix II.
Discussion: S. nigricollis species group. Raised to rank of full species by Groves (2001 c), contra Hershkovitz (1977:628).