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Hylobates muelleri

Hylobates muelleri (*)

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Classis: Mammalia
Subclassis: Theria
Infraclassis: Placentalia
Ordo: Primates
Subordo: Haplorrhini
Infraordo: Simiiformes
Parvordo: Catarrhini
Superfamilia: Hominoidea
Familia: Hylobatidae
Genus: Hylobates
Species: Hylobates muelleri
Subspecies: H. m. muelleri - H. m. abbotti - H. m. funereus


Hylobates muelleri, Martin, 1841

Vernacular names


* Hylobates muelleri on Mammal Species of the World.
Mammal Species of the World: A Taxonomic and Geographic Reference, 2 Volume Set edited by Don E. Wilson, DeeAnn M. Reeder Mammals Images

Müller's Bornean gibbon (Hylobates muelleri), also known as the grey gibbon, is a primate in the Hylobatidae or gibbon family.

Unlike other gibbon species, Müller's Bornean gibbon does not show sexual dimorphism in its fur coloration. Its fur is grey or brown colored with a ring of bright fur around its face. On the head it often has a darkly colored cap. With an average weight of 5.7 kg, it ranks among the smaller of the gibbons.

Müller's Bornean gibbon is endemic to the island of Borneo, inhabiting the northern and eastern part of the island. In the southwest of the island lives the Bornean white-bearded gibbon; their territories hardly overlap. Grey gibbons are diurnal rain forest dwellers, characterized by the long arms that all gibbons have, with which they brachiate through the trees. They live together in monogamous pairs, and defend their family territory against intruders with long, loud singing, which rings out above all else early in the morning. Their diet consists primarily of fruits. Little is known about the reproductive patterns of this species, but it is thought to be similar to that of other gibbon species.

Müller's Bornean gibbon occurs in a number of protected areas, including Betung Kerihun National Park, Bukit Baka Bukit Raya National Park, Kayan Mentarang National Park, Kutai National Park, Sungai Wain Protection Forest and Tanjung Puting National Park in Indonesia and the Lanjak Entimau Wildlife Sanctuary and Semengok Forest Reserve in Malaysia.[2]


There are three subspecies of this gibbon:[1][3]

* Müller's gray gibbon, Hylobates muelleri muelleri
* Abbott's gray gibbon, Hylobates muelleri abbotti
* Northern gray gibbon, Hylobates muelleri funereus


1. ^ a b Groves, C. (2005). Wilson, D. E., & Reeder, D. M, eds. ed. Mammal Species of the World (3rd ed.). Baltimore: Johns Hopkins University Press. pp. 180. OCLC 62265494. ISBN 0-801-88221-4. http://www.bucknell.edu/msw3.
2. ^ a b Geissmann, T. & Nijman, V. (2008). Hylobates muelleri. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 4 January 2009.
3. ^ Geissmann, Thomas. "Gibbon Systematics and Species Identification". http://gibbons.de/main/system/intro.html. Retrieved 2006-04-13.

Source: Wikispecies: All text is available under the terms of the GNU Free Documentation License