Answers are grounded in this paper and cite their sources.
Recognized species of sakis, South American monkeys of genus Pithecia (Cebidae), are P. hirsuta Spix, P. monachus E. Geoffroy, P. albicans Gray, P. pithecia Linnaeus. Evolutionary stages in sexual dichromatism in sakis and other primates are noted.
No takes yet. Share an insight, caveat, or question.
Philip Hershkovitz (1979) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: