Trachypithecus poliocephalus ssp. poliocephalus


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Trachypithecus poliocephalus ssp. poliocephalus
Species Authority: (Pousargues, 1898)
Parent Species:
Common Name(s):
English Cat Ba Hooded Black Leaf Monkey, Cat Ba Langur, Golden-headed Langur, Tonkin Hooded Black Langur

Assessment Information [top]

Red List Category & Criteria: Critically Endangered A2acd; B1ab(v); D ver 3.1
Year Published: 2008
Date Assessed: 2008-06-30
Assessor(s): Bleisch, B., Xuan Canh, L., Covert, B. & Yongcheng, L.
Reviewer(s): Mittermeier, R.A. & Rylands, A.B. (Primate Red List Authority)
Listed as Critically Endangered as this species is presently known only from a single 98 km2 national park on Cat Ba Island. Poaching has been the major threat to the Golden-Headed Langur and has resulted in a population decline from an estimated 2,500–2,800 langurs in the 1960s to a mere 53 individuals by 2000, representing a 98% decline in 40 years. The current total population of T. p. poliocephalus as of August 2006 is 64 individuals (R. Stenke pers. comm.).
2003 Critically Endangered
2000 Critically Endangered

Geographic Range [top]

Range Map: Click here to open the map viewer and explore range.

Population [top]

Population Trend: Decreasing

Habitat and Ecology [top]

Systems: Terrestrial

Citation: Bleisch, B., Xuan Canh, L., Covert, B. & Yongcheng, L. 2008. Trachypithecus poliocephalus ssp. poliocephalus. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 02 September 2015.
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