Saguinus nigrifrons, Taxa Only, Exact Match: 2 Treatments

Saguinus nigrifrons			Russell A. Mittermeier, Anthony B. Rylands & Don E. Wilson, 2013, Callitrichiade, Handbook of the Mammals of the World – Volume 3 Primates, Barcelona: Lynx Edicions, pp. 262-346 : 326-327	326-327
Saguinus fuscicollis subsp. nigrifrons			Wilson, Don E. & Reeder, DeeAnn, 2005, Order Primates, Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1, Baltimore: The Johns Hopkins University Press, pp. 111-184 : 134	134