article: List of Old World monkey species
links: IUCN Mandrillus Proboscis monkey John Edward Gray Old World monkey Gray langur Stamford Raffles List of New World monkey species Imperial units Common Era Biological classification Science (journal) Carl Linnaeus Colin Groves Anselme Gaëtan Desmarest New World monkey Macaque Richard Lydekker Metric system Binomial nomenclature Friedrich von Wurmb Guy Dollman Baboon Oldfield Thomas Barbary macaque Cercopithecinae Extinction Taxonomy (biology) Colobinae Simian Guenon Conservation biology Étienne Geoffroy Saint-Hilaire Phayre's leaf monkey Catarrhini Japanese macaque Thomas Stamford Raffles