Attributes / relations provided by
♦ ¹del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ ²Flexibility in Diets of Three Species of Costa Rican Primates, Colin Chapman, Folia primatol. 49: 90-105 (1987)
♦ ³The sugar composition of fruits in the diet of spider monkeys (Ateles geoffroyi) in tropical humid forest in Costa Rica, Pablo Riba-Hernández, Kathryn E. Stoner and Peter W. Lucas, Journal of Tropical Ecology (2003) 19:709–716