The Javan surili (Presbytis comata) is a vulnerable species of Old World monkey endemic to the western half of Java, Indonesia, a biodiversity hotspot. Other common names by which it is known by include gray, grizzled or Sunda Island surili; grizzled or stripe-crested langur; Javan grizzled langur; grizzled, Java or Javan leaf monkey; langur gris.[3]
There are two subspecies of the Javan surili:
Presbytis comata comata - Occurs in western Java
Presbytis comata fredericae - Occurs in central Java
This colobine species has a sacculated stomach to assist the breakdown in the cellulose from the leaves it feeds on. It has a small, slender face and tail, and large round stomachs. Its coloring ranges from dark gray to white. Leaf monkeys tend to be active during the day, spending up to 5 hours grooming themselves.
^Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press. p. 171. ISBN 0-801-88221-4. OCLC 62265494.
^Nijman, V.; Setiawan, A.; Ang, A. (2022). "Presbytis comata". IUCN Red List of Threatened Species. 2022: e.T210369485A210370097. Retrieved 21 July 2022.
^Masicott, P. "Grizzled Leaf Monkey". Retrieved 2007-04-20.
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