Indochinese black langur
| Indochinese black langur | |
|---|---|
Scientific classification
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Primates |
| Suborder: | Haplorhini |
| Infraorder: | Simiiformes |
| Family: | Cercopithecidae |
| Genus: | Trachypithecus |
| Species group: | Trachypithecus francoisigroup |
| Species: | T. ebenus
|
| Binomial name | |
| Trachypithecus ebenus Brandon-Jones,1995
| |
TheIndochinese black langur(Trachypithecus ebenus) is a poorly knownOld World monkeynative toLaosand adjacentVietnam.[1]It was originally described as asubspeciesofT. auratus,[2]but was later found to be a member of theT. francoisigroup, with some maintaining it as a subspecies of that species.[1]In 2001, it was recommended treating it as a separate species.[3]
Except for its almost entirely black pelage, it resembles the other members of theT. francoisigroup. Uniquely in this group, it and the relatedT. hatinhensisappear to beparapatric,[1]T. ebenusshowing what appears to be signs ofintergradationwithT. hatinhensisare known,[4]andgeneticallythe two barely are separable.[5][6]This has led to suggestions that it may be a blackmorphof thattaxon,[7]which in turn possibly should be considered a subspecies ofT. laotum.[5][6]A survey that included 67T. hatinhensisrevealed a high level of variation in the amount of white to the head, andebenuswas maintained as a morph.[8]It was formerly considereddata deficientbyIUCN,but they now include it in theendangeredT. hatinhensis.[9]
References
[edit]- ^abcBrandon-Jones, D.; Eudey, A. A.; Geissmann, T.; Groves, C. P.; Melnick, D. J.; Morales, J. C.; Shekelle, M. & Stewart, C.-B (2004). "Asian primate classification".International Journal of Primatology.25(1): 97–164.doi:10.1023/B:IJOP.0000014647.18720.32.S2CID29045930.
- ^Bradon-Jones, D (1995). "A revision of the Asian pied leaf monkeys (Mammalia: Cercopithecidae: Superspecies Semnopithecus auratus), with the description of a new subspecies".The Raffles Bulletin of Zoology.43:3–43.
- ^Groves, C. P.(2005).Wilson, D. E.;Reeder, D. M. (eds.).Mammal Species of the World: A Taxonomic and Geographic Reference(3rd ed.). Baltimore: Johns Hopkins University Press.ISBN0-801-88221-4.OCLC62265494.
- ^Duckworth, J. W., Salter, R. E., and Khounboline, K. (eds).1999 Wildlife in Lao P.D.R: 1999 status report.Vientiane: IUCN, WCS and CPAWM.
- ^abRoos, 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.
- ^abRoos, C., T. Nadler, Y. P. Zhang, H. Zischler. 2001.Molecular evolution and distribution of the superspecies Trachypithecus [francoisi].Folia Primatol. 72: 181-182.
- ^black langur (Trachypithecus ebenus).Archived2011-08-07 at theWayback MachineEPRC. Accessed 2008-07-21
- ^Nadler, T. (2010).Color variation in Hatinh langurs (Trachypithecus [laotum] hatinhensis).Vietnamese Journal of Primatology 4: 13-18.
- ^Xuan Canh, L.; Khac Quyet, L.; Thanh Hai, D. & Timmins, R.J. (2008). "Trachypithecus hatinhensis".The IUCN Red List of Threatened Species.2008:e.T40789A10354744.doi:10.2305/IUCN.UK.2008.RLTS.T40789A10354744.en.