Primate of the family Cercopithecidae and Colobinae this subfamily known local Joja or monkey Mentawai. Besides, some are calling it Mentawai Leaf Monkey, Golden-bellied Mentawai Island Langur, or Long-tailed Langur. As the name implies, These monkeys are primates endemic to the Mentawai Islands. Presbytis potenziani consists of two subspecies, yakni P. potenziani potenziani that were found on the island of Sipora, North Pagai and South Pagai, and P. cyber potenziani found on the island of Siberut.
as the genus Presbytis in general, Mentawai langur animal is diurnal, or active during the day, are arboreal (mainly occupy middle and upper canopy area) and has a system of locomotion kuadrupedal, dependent and jump. Pakan utamanya adalah dedaunan (55% ) although these animals are also known to consume the fruit, at-bijian than bunga. animals genus Presbytis generally polygamy, namun Presbytis potenziani very unique because it is known to have a monogamous mating system in the group. although the group one male-multi female also been reported in animals of this species, monogamy properties found in Presbytis potenziani It remains an interesting phenomenon because it is very rare in monkeys of this family.
According to the IUCN Redlist 2016, Langur Mentawai status Endangered karena populasinya terus menurun, even expected to reach 50% decline over 40 Last year due to habitat destruction and poaching activities. based on CITES, These animals include the category Appendix I.
Sterck E.H.M. 2012. The Behavioral Ecology of Colobine Monkeys dalam The Evolution of Primate Societies. Mitani, J.C.. Call J., et al (Ed). The University of Chicago Press, Chicago. p73-75.
Supriatna, J. & Ramadan, R. 2016. Primate Tourism Indonesia. Yayasan Pustaka Obor Indonesia, Jakarta. p120-124.
Whittaker, D. & Mittermeier, R.A. 2008. Presbytis potenziani. The IUCN Red List of Threatened Species 2008: e.T18130A7667072. http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T18130A7667072.en. Downloaded on 27 December 2016.