Images of Trachypithecus obscurus from Thailand.
References:
Boonratana, R., Traeholt, C., Brockelmann, W. & Htun, S. 2008. Trachypithecus obscurus. The IUCN Red List of Threatened Species 2008: e.T22039A9349397. http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T22039A9349397.en. Downloaded on 28 March 2019.
Boonratana, R., Traeholt, C., Brockelmann, W. & Htun, S. 2008. Trachypithecus obscurus. The IUCN Red List of Threatened Species 2008: e.T22039A9349397. http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T22039A9349397.en. Downloaded on 28 March 2019.