Hatinh langurs are black with a thin white line of fur over the upper lip that thickens at the corner of the mouth and extends to the cheeks, around the ears and down to the neck. They have a high pointed crest on the head and a long tail, that unlike the Francios langur, they hold in an arc over their back. Males and females vary in size with males weighing an average of 7.8kg with an average head-body length of 56cm and females average 6.8kg with 55cm head-body length. Females possess a distinctive 'pubic patch' of white fur and pale skin anterior to the callosities.
This species can be found in the western part of Quang Binh and Quang Tri Provinces in Vietnam and in the eastern part of Khammouan Savannakhet provinces in Lao PDR. The total population of this species in unknown.
HABITAT AND ECOLOGY
The Hatinh langur occurs in heavily forested limestone in Vietnam and steep rocky mountain slopes in Lao PDR. They are highly folivorous, also feeding on lesser amounts of fruit, bark and roots. Group size varies for location, but averages around 8 animals, with one adult male, multiple females and offspring.
The species greatest threats are from hunting for meat and medicine.
STATUS AND CONSERVATION
In Vietnam the species is listed as Endangered in the 2007 Vietnam Red Data Book and is protected by law under Decree 32/2006 ND-CP:1B.
CITES Appendix II- International trade must be controlled in order to avoid utilisation incompatible with their survival.
The EPRC has had great success in breeding this species and since 2015 has been active in the reintroduction of captive bred animals in partnership with Green Viet.