Hatinh Langur

Taxobox
name = Hatinh LangurMSW3 Groves|pages=177]
status = EN
status_system = iucn3.1
regnum = Animalia
phylum = Chordata
classis = Mammalia
ordo = Primates
familia = Cercopithecidae
genus = "Trachypithecus"
species_group = "T. francoisi"
species = "T. hatinhensis"
binomial = "Trachypithecus hatinhensis"
binomial_authority = (Dao, 1970)

The Hatinh Langur ("Trachypithecus hatinhensis") is a highly threatened Old World monkey found in limestone forests in Vietnam, primarily in the Quang Binh Province. A recent survey discovered a small population living in the Quang Tri Province. Contrary to its name, it is not known from the Ha Tinh Province. The local Van Kieu minority refer to this lutung as the 'Con Cung', which roughly translates as "black, cliff-dwelling monkey with a long tail". [ [http://www.birdlife.org/news/news/2005/11/langur.html Vietnam survey team finds rare primate.] BirdLife International news. Accessed 2008-07-15] It resembles the closely related Francois' Langur ("T. francoisi"), but its white cheek-stripes extend behind the ears onto the nape.

This diurnal, largely arboreal langur is social and typically seen in groups of 2-15, but occasionally groups may number as many as 30 individuals.Nguyen Manh Ha. 2006. "Some Observations on the Hatinh langur, Trachypithecus laotum hatinhensis (Dao, 1970), in North Central Vietnam." Primate Concervation. 21: 149-154. [http://www.primate-sg.org/PDF/PC21.hatinhensis.pdf Available online (PDF)] ] It has often been considered a subspecies of the Francois' Langur, but was elevated to a full species by Bradon-Jones in 1995, [Bradon-Jones, D. 1995. "A revision of the Asian pied leaf monkeys (Mammalia: Cercopithecidae: Superspecies Semnopithecus auratus), with the description of a new subspecies." Raffles Bull. Zool. 43: 3-43] and this was followed by Groves, 2005. Both, however, listed it as a subspecies in 2004, [Bradon-Jones, D., A. A. Eudey, T. Geissmann, C. P. Groves, D. J. Melnick, J. C. Morales, M. Shekelle, and C. B. Stewart. 2004. "Asian primate classification." International Journal of Primatology. 23: 97-164.] and genetic work suggest it should be considered a subspecies of the Laotian Langur ("T. laotum"). [Roos, C. 2004. "Molecular evolution and systematics of Vietnamese primates." In: Nadler, T., U. Streicher, and Ha Thang Long (eds). Conservation of Primates in Vietnam: 23-28.] [Roos, C., T. Nadler, Y. P. Zhang, H. Zischler. 2001. "Molecular evolution and distribution of the superspecies Trachypithecus [francoisi] ." Folia Primatol. 72: 181-182.]

References