Presbytis thomasi | Thomas' Langur
Good spot: Gunung Leuser National Park, Sumatra, Indonesia
Taxonomy & Occurrence
Presbytis thomasi is a monotypic species (no subspecies). It is found in Aceh Province of north Sumatra, Indonesia, mostly north of the Wampu and Alas [= Simpang Kiri] rivers, though a population has also been discovered south of the Alas .
IUCN Conservation Status
 Roos C., Boonratana R., Supriatna J., Fellowes J.R., Groves C.P., Nash S.D., Rylands A.B. & Mittermeier R.A., 2014. An updated taxonomy and conservation status review of Asian primates. Asian Primates Journal 4(1), 2-38.
Page Last Updated: 1 July 2022