found: Work cat.: Paulsen, D.I. The behavioral and physiological effects of ecotourism on the Sulawesi black macaques ... 2009:abstr. (Sulawesi black macaques (Macaca nigra))
found: Animal info : information on rare, threatened, and endangered mammals, via WWW, Dec. 28 2009(Celebes Black Macaque (Macaca nigra))
found: ITIS, Dec. 30, 2009(Macaca nigra (Desmarest, 1822); valid: Celebes crested macaque)
found: IUCN red list of threatened species, via WWW, Dec. 30, 2009(Macaca nigra (Celebes Crested Macaque))
found: NCBI taxonomy browser, via WWW, Dec. 30, 2009(Macaca nigra (Celebes crested macaque))
found: Animal diversity Web, via WWW, Dec. 30, 2009(Macaca nigra, Celebes crested macaque; Celebes apes (Macaca nigra) are found only on the islands of Indonesia, mainly the island of Sulawesi)
found: Mammal Image Library of American Society of Mammalogists, via WWW, Dec. 30, 2009(Macaca nigra - Celebes macaque)
found: Mammal species of the world, via WWW, Dec. 30, 2009 (Macaca nigra; common name: Celebes Crested Macaque; synonyms: macaca lembicus; macaca malayanus)
found: Primate factsheets, via Primate info net website, Dec. 30, 2009 (Crested black macaque, Macaca nigra; other names: black ape, Celebes crested macaque, Celebes ape, Celebes macaque, crested black macaque, Sulawesi crested black macaque, Sulawesi macaque)
found: Wikipedia, Dec. 30, 2009 (Celebes Crested Macaque (Macaca nigra); also known as the Crested Black Macaque, Sulawesi Crested Macaque, or the Black "Ape"; an Old World monkey that lives in the northeast of the Indonesian island of Sulawesi (Celebes) as well as on smaller neighboring islands; species: Macaca nigra; genus: Macaca)