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The Cat Ba langur (Trachypithecus poliocephalus), also known as the golden-headed langur, is a critically endangered species of langur endemic to Cát Bà Island, Vietnam.It is among the rarest primates in the world, and possibly the rarest primate in Asia, with population size estimated at less than 70 individuals.
It was formerly considered a subspecies of the Cat Ba langur (T. poliocephalus), which is now thought to be endemic to Vietnam. [2]Its taxonomy was previously uncertain; it has been considered a partially albinistic population of the François' langur (T. francoisi), a subspecies of Francois' langur, [3] a valid species (T. leucocephalus), or a subspecies, T. poliocephalus leucocephalus.
Lastly, the White-headed langur (T. leucocephalus), previously thought to be a subspecies of the Francois langur (T. Francois) or Cat Ba langur (T. poliocephalus), is currently recognized as a distinct species by IUCN Red List assessors and the American Society of Mammalogists, based on a 2007 paper by Groves. [17] [18] [19]
The Cat Ba langur (Trachypithecus poliocephalus), or golden-headed langur, is endemic to Cat Ba Island and is one of the most endangered primates in the world. The langurs' population numbers, which used to be between 2,400 and 2,700, dwindled to as low as only 53 langurs in 2000 due to poaching for traditional medicine and habitat ...
Cát Bà National Park was established on 31 March 1986 under No.79/CP decision of the Council of Ministers of Vietnam (now the government). The park has been a popular tourist destination, since the mid-1990s with wealthy Chinese and Vietnamese tourists.
Cat Ba langur: Trachypithecus poliocephalus: 51–54 [3] CR [3] [3] Popa langur: Trachypithecus popa: 135–176 [4] CR [4] [4] Estimate for mature individuals. [4 ...
This page was last edited on 26 December 2018, at 04:29 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
The order Primates consists of 505 extant species belonging to 81 genera. This does not include hybrid species or extinct prehistoric species. Modern molecular studies indicate that the 81 genera can be grouped into 16 families; these families are divided between two named suborders and are grouped in those suborders into named clades, and some of these families are subdivided into named ...