Tonkin Snub-nosed Langur

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Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Primates
Family:	Cercopithecidae
Subfamily:	Colobinae
Genus:	Rhinopithecus
Species:	R. avunculus

Binomial name

Rhinopithecus avunculus
(Dollman, 1912)

The Tonkin Snub-nosed Langur or Dollman's Snub-nosed Langur (Rhinopithecus avunculus) is a species of langur endemic to northern Vietnam.

[edit] References

^ Boonratana, R., Le Xuan Canh & Vu Ngoc Thanh (2003). Rhinopithecus avunculus. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 2007-03-16.

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Extant species of family Cercopithecidae (subfamily Colobinae)

Kingdom: Animalia · Phylum: Chordata · Class: Mammalia · Order: Primates · Suborder: Haplorrhini

African group

Colobus	Black Colobus (Colobus satanas) · Angola Colobus (Colobus angolensis) · King Colobus (Colobus polykomos) · Ursine Colobus (Colobus vellerosus) · Mantled Guereza (Colobus guereza)

Piliocolobus	Western Red Colobus (Piliocolobus badius) · Pennant's Colobus (Piliocolobus pennantii) · Preuss's Red Colobus (Piliocolobus preussi) · Thollon's Red Colobus (Piliocolobus tholloni) · Central African Red Colobus (Piliocolobus foai) · Ugandan Red Colobus (Piliocolobus tephrosceles) · Uzungwa Red Colobus (Piliocolobus gordonorum) · Zanzibar Red Colobus (Piliocolobus kirkii) · Tana River Red Colobus (Piliocolobus rufomitratus)

Procolobus	Olive Colobus (Procolobus verus)

Langur group

Semnopithecus	Nepal Gray Langur (Semnopithecus schistaceus) · Kashmir Gray Langur (Semnopithecus ajax) · Tarai Gray Langur (Semnopithecus hector) · Northern Plains Gray Langur (Semnopithecus entellus) · Black-footed Gray Langur (Semnopithecus hypoleucos) · Southern Plains Gray Langur (Semnopithecus dussumieri) · Tufted Gray Langur (Semnopithecus priam)

Trachypithecus	Trachypithecus vetulus group: Purple-faced Langur (Trachypithecus vetulus) · Nilgiri Langur (Trachypithecus johnii) Trachypithecus cristatus group: Javan Lutung (Trachypithecus auratus) · Silvery Lutung (Trachypithecus cristatus) · Indochinese Lutung (Trachypithecus germaini) · Tenasserim Lutung (Trachypithecus barbei) Trachypithecus obscurus group: Dusky Leaf Monkey (Trachypithecus obscurus) · Phayre's Leaf Monkey (Trachypithecus phayrei) Trachypithecus pileatus group: Capped Langur (Trachypithecus pileatus) · Shortridge's Langur (Trachypithecus shortridgei) · Gee's Golden Langur (Trachypithecus geei) Trachypithecus francoisi group: Francois' Langur (Trachypithecus francoisi) · Hatinh Langur (Trachypithecus hatinhensis) · White-headed Langur (Trachypithecus poliocephalus) · Laotian Langur (Trachypithecus laotum) · Delacour's Langur (Trachypithecus delacouri) · Indochinese Black Langur (Trachypithecus ebenus)

Presbytis	Sumatran Surili (Presbytis melalophos) · Banded Surili (Presbytis femoralis) · Sarawak Surili (Presbytis chrysomelas) · White-thighed Surili (Presbytis siamensis) · White-fronted Surili (Presbytis frontata) · Javan Surili (Presbytis comata) · Thomas's Langur (Presbytis thomasi) · Hose's Langur (Presbytis hosei) · Maroon Leaf Monkey (Presbytis rubicunda) · Mentawai Langur or Joja (Presbytis potenziani) · Natuna Island Surili (Presbytis natunae)

Odd-nosed group

Pygathrix	Red-shanked Douc (Pygathrix nemaeus) · Black-shanked Douc (Pygathrix nigripes) · Gray-shanked Douc (Pygathrix cinerea)

Rhinopithecus	Golden Snub-nosed Monkey (Rhinopithecus roxellana) · Black Snub-nosed Monkey (Rhinopithecus bieti) · Gray Snub-nosed Monkey (Rhinopithecus brelichi) · Tonkin Snub-nosed Langur (Rhinopithecus avunculus)

Nasalis	Proboscis Monkey (Nasalis larvatus)

Simias	Pig-tailed Langur (Simias concolor)