Herbivorous Monkeys

Hamlyn’s Monkey

Species Name: Cercopithecus hamlyni
The Hamlyn's monkey (Cercopithecus hamlyni), also called the owl-faced monkey, is an Old World monkey inhabiting the Congo's bamboo and primary rain forests. Hamlyn's monkeys have unique feet and hands in elongated phalanges.

Mantled Guereza

Species Name: Colobus guereza
The mantled guereza (Colobus guereza), also known as the guereza, Abyssinian black-and-white colobus, or eastern black-and-white colobus, is a black-and-white colobus, a species of Old World monkey. The mantled guerezas are typically diurnal.

Udzungwa Red Colobus

Species Name: Piliocolobus gordonorum
The Udzungwa red colobus (Piliocolobus gordonorum), also called the Iringa red colobus or the Uzungwa red colobus is endemic to Tanzania.

Ulindi River Red Colobus

Species Name: Piliocolobus lulindicus
The Ulindi River red colobus (Piliocolobus lulindicus) is native to the Democratic Republic of the Congo. This Red Colobus species is named after the Ulindi River.

Thollon’s Red Colobus

Species Name: Piliocolobus tholloni
The Thollon's red colobus (Piliocolobus tholloni), also called the Tshuapa red colobus, is native to the Democratic Republic of the Congo and the Lower Republic of the Congo. It was recognized as a separate species by Dandelot in 1974, followed by Groves in 2001.

Tana River Red Colobus

Species Name: Piliocolobus rufomitratus
The Tana River red colobus (Piliocolobus rufomitratus), also called the eastern red colobus, is a critically endangered primate species in the Cercopithecidae family. The Tana River red colobus monkeys are the only one of 18 species of red colobus that do not live in the tropical rainforest.

Semliki Red Colobus

Species Name: Piliocolobus semlikiensis
The Semliki red colobus (Piliocolobus semlikiensis) is native to central Africa. The Semliki red colobus lives in the ironwood forest of the northeastern Democratic Republic of the Congo between the Rwenzori Mountains and the Semliki River valley.

Preuss’s Red Colobus

Species Name: Piliocolobus preussi
Preuss's red colobus (Piliocolobus preussi) is native to the Cross-Sanaga Rivers eco-region. These old-world monkeys are restricted to small areas in Cameroon and Nigeria but once occupied a much larger area.

Pennant’s Red Colobus

Species Name: Piliocolobus pennantii
Pennant's Colobus or Pennant's Red Colobus (Piliocolobus pennantii) is a species of arboreal primate in the Cercopithecidae family. Like other red colobus monkeys, the Pennant's red colobus lives in flocks that may consist of 12 to 80 individuals occupying a territory of 25 to 150 hectares.

Oustalet’s Red Colobus

Species Name: Piliocolobus oustaleti
(Piliocolobus oustaleti) is another species of red colobus that lives in various forest types in the southern Central African Republic, southern South Sudan, northern Democratic Republic of the Congo, and northeastern Congo.

Olive Colobus

Species Name: Procolobus verus
The olive colobus (Procolobus verus), also called the Van Beneden's colobus or green colobus is a primate species in the Cercopithecidae family. It is the smallest specimen of all the Colobine monkeys. It is rarely seen in its natural habitat due to its secretive nature and cryptic coloration.

Niger Delta Red Colobus

Species Name: Piliocolobus epieni
The Niger Delta red colobus (Piliocolobus epieni) is a critically endangered colobus native to the western part of the Niger Delta in southern Nigeria. The scientific name of the Niger Delta red colobus, Piliocolobus epieni, comes from the local Ijaw language word for the species, "epieni".

Miss Waldron’s Red Colobus

Species Name: Piliocolobus waldronae
Miss Waldron's red colobus (Piliocolobus waldronae) is endemic to West Africa. Miss Waldron's red colobus was discovered in December 1933 by Willoughby P. Lowe, a collector at the British Museum (Natural History).

Lomami Red Colobus

Species Name: Piliocolobus parmentieri
The Lomami red colobus (Piliocolobus parmentieri) is native to central Africa. The Lomani red colobus monkey has a restricted range in the lowland rainforest between the Lomani River and the Lualaba River in the central Democratic Republic of the Congo.

Lang’s Red Colobus

Species Name: Piliocolobus langi
Lang's red colobus (Piliocolobus langi) is another species of red colobus monkey. Historically, it was treated as a subspecies of the Central African red colobus (Piliocolobus foai). Still, more recent taxonomies generally treat it as a distinct species.

Foa’s Red Colobus

Species Name: Piliocolobus foai
Foa's Red Colobus or Central African red colobus is endemic to the Democratic Republic of the Congo. Generally, these African primates are found in large groups of 20 to 90 individuals.

Bouvier’s Red Colobus

Species Name: Piliocolobus bouvieri
Bouvier's Red Colobus was rediscovered in 2015 in the Republic of Congo after four decades without confirmed sightings. These African primates live in the swampy forests surrounding the Congo River, between the mouths of the Oubangui and Alima rivers.

Shan State Langur

Species Name: Trachypithecus melamerus
Shan State Langur was generally considered a subspecies or a synonym of Phayre's leaf monkey (Trachypithecus phayrei) until Roos et al. elevated it to species status in 2020.

Pig-tailed Langur

Species Name: Simias concolor
The pig-tailed langur (Simias concolor), monotypic in the Simias genus, is a great Old-World monkey native to several small islands off Sumatra, Indonesia. Adult pig-tailed langurs have black faces and small, turned-up noses.

Mitered Langur

Species Name: Presbytis mitrata
The mitered langur has brown or gray fur on its back, darker, while it is even darker on its belly and the arms, legs, and tail. These Indonesian primates live in groups of 1 male with 5 to 17 females.

Miller’s Langur

Species Name: Presbytis canicrus
Miller's Langur (Presbytis canicrus), also called the Kutai Gray Langur, is the rarest of the four Hosei subspecies, all of which are native to the island of Borneo. One of the world's most endangered primates, Miller's langur, was once considered extinct until it was rediscovered in 2013.

Mentawai Langur

Species Name: Presbytis potenziani
Mentawai Langur is also called the Long-Tailed Langur, and it is native to the Mentawai Islands in Indonesia. The pelage of Mentawai langur is medium length, longer on the back of the shoulders and anterior of the flanks and shorter on the face, neck, abdomen, and under the thighs.

Laotian Langur

Species Name: Trachypithecus laotum
The Laotian langur (Trachypithecus laotum), also known as white-browed black langur, is another primate species that nest in small limestone caves and holes that shelter from predators, rain, and cold.

Indochinese Grey Langur

Species Name: Trachypithecus crepusculus
The Indochinese gray langur (Trachypithecus crepusculus) is a species of Lutung native to Southeast and East Asia. This species was once thought to be conspecific with the Phayre's leaf monkey (Trachypithecus phayrei).

Hatinh Langur

Species Name: Trachypithecus hatinhensis
The Hatinh langur (Trachypithecus hatinhensis) is a critically endangered Old World monkey found in the limestone forests of Vietnam, particularly in Quảng Bình province. Contrary to their common name, the Hatinh langur is not known from the province of Hà Tĩnh.

Germain’s Langur

Species Name: Trachypithecus germaini
Germain's Langur is a lutung species endemic to Thailand, Vietnam, Laos, Cambodia, and Burma. Germain's langur is a terrestrial tree-dwelling species occasionally found in lowlands.

East Sumatran Banded Langur

Species Name: Presbytis percura
The East Sumatran banded langur also called the East Sumatran banded surili are primarily found in the fragmented landscape of pulp and rubber plantations. These surilis are shy and alert creatures, rarely leaving the comfort of their canopies.

Delacour’s Langur

Species Name: Trachypithecus delacouri
The Delacour's langur, also known as Delacour's Lutung, is an endangered Lutung native to northern Vietnam. The species is named after Jean Théodore Delacour, a French-American ornithologist.

Cross Marked Langur

Species Name: Presbytis chrysomelas
The Sarawak surili, also known as Cross-marked Langur, is a monkey species in the Cercopithecidae family. The Sarawak surili was once considered widespread but has declined significantly due to habitat and loss persecution.

Black and White Langur

Species Name: Presbytis bicolor
The black-and-white langur is a primate species in the Cercopithecidae family. It was formerly thought to be a subspecies of the Presbytis melalophos (black-crested Sumatran langur). Still, the genetic analysis indicated they were separate species.

Black Sumatran Langur

Species Name: Presbytis sumatrana
The black Sumatran langur is a species of monkey in the Cercopithecidae family that is endemic to Indonesia's Sumatra Island. Presbytis sumatrana was once considered a subspecies of Sumatran Surili. Still, genetic analysis has shown it to be a distinct species.

Indochinese Black Langur

Species Name: Trachypithecus ebenus
The Indochinese black langur (Trachypithecus selbstus) is a little-known Lutung endemic to Laos and neighboring Vietnam. Because they live in dense forests and rarely venture outside, observing them in the wild can be difficult.

Patas Monkey

Species Name: Erythrocebus patas
The Patas Monkey (Erythrocebus patas), also called the Hussar Monkey or Wadi Monkey is a terrestrial monkey distributed in semi-arid areas of West and East Africa. The patas monkey lives in multi-female groups of about 60 individuals (although much larger aggregations have been reported).

Schmidt’s Red-tailed Monkey

Species Name: Cercopithecus ascanius
The Schmidt's red-tailed monkey, also called the red-tailed guenon, Schmidt's guenon, or black-cheeked white-nosed monkey is a primate species in the Cercopithecidae family. The Schmidt's red-tailed monkey is named for its red coloration on the underside of its tail, as well as the bicolor coloration of its tail as the reddish color increases from the base to the tip.

Zanzibar Red Colobus

Species Name: Piliocolobus kirkii
The Zanzibar red colobus (Piliocolobus kirkii) is endemic to Unguja, the main island of the Zanzibar archipelago off the coast of Tanzania. The Zanzibar red colobus, often referred to as Kirk's red colobus is named after Sir John Kirk, the British resident of Zanzibar who first spotted these creatures.

Western Red Colobus

Species Name: Piliocolobus badius
The western red colobus (Piliocolobus badius), also called the Upper Guinean red colobus, rust red colobus, or bay red colobus is a species of Old-World monkey found in the forests of West Africa, from Senegal to Ghana.

White-Cheeked Macaque

Species Name: Macaca leucogenys
The white-cheeked macaque (Macaca leucogenys) is found only in Medog County in southeastern Tibet and the Arunachal Pradesh state of India. The species was first discovered and described by Chinese primatologists Peng-Fei Fan, Cheng Li, and Chao Zhao in the American Journal of Primatology in 2015.

Pagai Island Macaque

Species Name: Macaca pagensis
The Pagai island macaque (Macaca pagensis), also called the Pagai or Bokkoi macaque is an Old-World monkey native to the Mentawai Islands on the west coast of Sumatra. Groups of Pagai Island macaques consist of approximately 5 to 25 individuals.

Booted Macaque

Species Name: Macaca ochreata
The booted macaque is a macaque native to Indonesia's Sulawesi Island. This Old-World monkey is diurnal, spending most of the day in trees. A booted macaque monkey's body mass is determined by its sex, with males significantly larger than females.

Tonkean Macaque

Species Name: Macaca tonkeana
Tonkean macaques also known as Tonkean black macaques, are endemic to the central part of the island of Sulawesi and the neighboring Togian Islands in Indonesia. Tonkea macaques are pretty intelligent and creative.

Selangor Silvered Langur

Species Name: Trachypithecus selangorensis
The Selangor silvered langur (Trachypithecus selangorensis) is a leaf monkey living on the west coast of the Malay Peninsula. Like most leaf monkeys, the Selangor silvered langur usually lives in groups of a single adult male and several adult females and their young offspring.

Purple-faced Langur

Species Name: Semnopithecus vetulus
The purple-faced langur (Semnopithecus vetulus), also called the purple-faced leaf monkey, is an Old World species native to Sri Lanka. The purple-faced langur is found in the closed forests of Sri Lanka's mountains and in the southwestern part of the country known as the 'wetland'.

Popa Langur

Species Name: Trachypithecus popa
Popa langur (Trachypithecus popa) is a primate species in the Cercopithecidae family. It occurs exclusively in Myanmar. The species is named after Mount Popa, where a population of 100 monkeys lives.

Pale-Thighed Langur

Species Name: Presbytis siamensis
The pale-thighed surili (Presbytis siamensis), also called the white-thighed langur, is a primate species in the Old World monkey family (Cercopithecidae). Pale-thighed langurs are savvy herbivores; it's fun to say they only eat plants and have a fussy palate, with a preference for young leaves, seeds, and fruits.

Cat Ba Langur

Species Name: Trachypithecus poliocephalus
The white-headed langur, also called the Cat Ba langur, is an endangered species of langur native to Guangxi, China. Cat Ba langurs are comfortable in trees or ground but prefer steep cliffs where humans can't set foot.

Black-footed Gray Langur

Species Name: Semnopithecus hypoleucos
The black-footed gray langur is an Old-World monkey, one of the langur species. Like other gray langurs, this species is a leaf-eating monkey in southern India. The black-footed gray langur is distributed throughout southwestern India (Kerala, Karnataka, and Goa) but is concentrated in the Western Ghats.

Tenasserim Langur

Species Name: Trachypithecus barbei
Tenasserim lutung (Trachypithecus barbei) is a species of lutung. It occurs in Thailand and Myanmar. The species derived its common name from the Tenasserim Hills.

Siberut Langur

Species Name: Presbytis siberu
Siberut langurs are native to the islands of North Pagai, South Pagai, and Sipora. Siberut langurs spend over 80 percent of their time resting and foraging and only a tiny portion traveling and socializing.

Shortridge’s Capped Langur

Species Name: Trachypithecus shortridgei
The Shortridge's capped langur (Trachypithecus shortridgei) is a colobine primate inhabiting low to medium evergreen and semi-evergreen forests east of the Chindwin River in northeastern Myanmar and southwestern Myanmar, China, in the Nu and Dulong valleys.

White-headed Langur

Species Name: Trachypithecus leucocephalus
The white-headed langur (Trachypithecus leucocephalus) is an endangered species of langur native to Guangxi, China. As the common name suggests, a tuft of white fur covers this primate's head.

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