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♦ ¹Diet of Southern Muriquis in Continuous Brazilian Atlantic Forest, Mauricio Talebi, Alexandre Bastos, and P. C. Lee, International Journal of Primatology, Vol. 26, No. 5, October 2005, pp. 1175-1187
♦ ²Abundance, habitat use and diet of Callicebus nigrifrons Spix (Primates, Pitheciidae) in Cantareira State Park, São Paulo, Brazil, Leonardo C. Trevelin; Marcio Port-Carvalho; Maurício Silveira & Eduardo Morell, Revista Brasileira de Zoologia 24 (4): 1071–1077, dezembro 2007