Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Primates Linnaeus, 1758 - primates
       Suborder Haplorrhini Pocock, 1918 see Suborder Haplorhini Pocock, 1918
         Infraorder Simiiformes Haeckel, 1866
           Parvorder Platyrrhini Geoffroy Saint-Hilaire, 1812
             Family Cebidae Bonaparte, 1831 - New World monkeys
               Subfamily Callitrichinae Gray, 1821 see Family Callitrichidae Gray, 1821
                 Genus Saguinus Hoffmannsegg, 1807 - tamarins
                   Saguinus fuscicollis (Spix, 1823) - saddle-back tamarin
                     01 [Saguinus fuscicollis fuscicollis]ᵀ (Spix, 1823)
                     02 Saguinus fuscicollis avilapiresi Hershkovitz, 1966
                     03 Saguinus fuscicollis cruzlimai Hershkovitz, 1966
                     04 Saguinus fuscicollis fuscus (Lesson, 1840)
                     05 Saguinus fuscicollis illigeri (Pucheran, 1845)
                     06 Saguinus fuscicollis leucogenys (Gray, 1866)
                     07 Saguinus fuscicollis lagonotus (Jiménez de la Espada, 1870)
                     08 Saguinus fuscicollis nigrifrons (I. Geoffroy, 1851)
                     09 Saguinus fuscicollis primitivus Hershkovitz, 1977
                     10 Saguinus fuscicollis weddelli (Deville, 1849)