List of cercopithecoids facts for kids

Dusky leaf monkeys (Trachypithecus obscurus) are a type of Old World monkey.

Old World monkeys, also known as cercopithecoids, are a large group of primates. This group includes many monkeys you might know, like baboons, colobuses, guenons, lutungs, and macaques. They are found in different parts of Asia and Africa, living mostly in forests, but some also live in shrublands, wetlands, and even caves!

Old World monkeys come in many sizes. The smallest is the Gabon talapoin, which is about 23 cm (9 in) long, plus its tail. The largest is the kipunji, which can be up to 90 cm (35 in) long, with a tail that's even longer! These monkeys mainly eat leaves, fruit, and seeds.

Sadly, many Old World monkey species are in danger. Forty-eight species are considered endangered, and twenty-six species are even more at risk, listed as critically endangered.

There are 158 types of Old World monkeys alive today. They are split into two main groups:

Cercopithecinae: This group has 78 species, including baboons, guenons, and macaques.
Colobinae: This group has 80 species, including colobuses and lutungs.

Scientists are always learning more about these monkeys, and sometimes they discover new things or change how they classify them.

Meet the Old World Monkeys

This section introduces some of the different kinds of Old World monkeys. Their conservation status is based on the International Union for Conservation of Nature (IUCN) Red List.

Monkeys of the Cercopithecinae Group

This group includes many well-known monkeys like baboons and macaques.

Allen's Swamp Monkey

Allen's swamp monkey (Allenopithecus nigroviridis)

Name: Allen's swamp monkey (Allenopithecus nigroviridis)
Where they live: Central Africa.
Size: About 33–51 cm (13–20 in) long, with a tail of 35–52 cm (14–20 in).
Habitat: Forests.
What they eat: Fruit, leaves, and small insects.
Status: Least Concern (LC) – their population is decreasing.

L'Hoest's Monkey

L'Hoest's monkey (Allochrocebus lhoesti)

Name: L'Hoest's monkey (Allochrocebus lhoesti)
Where they live: Central Africa.
Size: About 31–69 cm (12–27 in) long, with a tail of 48–10 cm (19–4 in).
Habitat: Forests.
What they eat: Fruit, leaves, mushrooms, and insects.
Status: Vulnerable (VU) – their population is decreasing.

Agile Mangabey

Agile mangabey (Cercocebus agilis)

Name: Agile mangabey (Cercocebus agilis)
Where they live: Central Africa.
Size: About 44–65 cm (17–26 in) long, with a tail of 45–79 cm (18–31 in).
Habitat: Forests.
What they eat: Fruit, seeds, shoots, and small vertebrates.
Status: Least Concern (LC) – their population is decreasing.

Tana River Mangabey

Tana River mangabey (Cercocebus galeritus)

Name: Tana River mangabey (Cercocebus galeritus)
Where they live: Eastern Africa.
Size: About 44–63 cm (17–25 in) long, with a tail of 50–68 cm (20–27 in).
Habitat: Forests, shrublands, and wetlands.
What they eat: Fruit, seeds, stems, leaves, insects, and fungi.
Status: Critically Endangered (CR) – only 100–1,000 individuals left, and their population is decreasing.

Blue Monkey

Blue monkey (Cercopithecus mitis)

Name: Blue monkey (Cercopithecus mitis)
Where they live: Sub-Saharan Africa.
Size: About 31–70 cm (12–28 in) long, with a tail of 55–109 cm (22–43 in).
Habitat: Forests.
What they eat: Fruit, leaves, and insects.
Status: Least Concern (LC) – their population is decreasing.

Diana Monkey

Diana monkey (Cercopithecus diana)

Name: Diana monkey (Cercopithecus diana)
Where they live: Western Africa.
Size: About 40–55 cm (16–22 in) long, with a tail of 50–75 cm (20–30 in).
Habitat: Forests.
What they eat: Fruit, flowers, leaves, and insects.
Status: Endangered (EN) – their population is decreasing.

Green Monkey

Green monkey (Chlorocebus sabaeus)

Name: Green monkey (Chlorocebus sabaeus)
Where they live: Western Africa.
Size: About 42–46 cm (17–18 in) long, with a tail of 42–72 cm (17–28 in).
Habitat: Forests and savannas.
What they eat: Fruit and leaves.
Status: Least Concern (LC) – their population is decreasing.

Common Patas Monkey

Common patas monkey (Erythrocebus patas)

Name: Common patas monkey (Erythrocebus patas)
Where they live: Equatorial Africa.
Size: About 50–70 cm (20–28 in) long, with a tail of 50–70 cm (20–28 in).
Habitat: Forests, savannas, shrublands, and grasslands.
What they eat: Fruit, insects, leaves, roots, and bird eggs.
Status: Near Threatened (NT) – their population is decreasing.

Japanese Macaque

Japanese macaque (Macaca fuscata)

Name: Japanese macaque (Macaca fuscata)
Where they live: Japan.
Size: About 36–77 cm (14–30 in) long, with a tail of 1–15 cm (0.4–6 in).
Habitat: Forests.
What they eat: Fruit, seeds, flowers, nectar, leaves, and fungi.
Status: Least Concern (LC) – their population is stable.

Lion-tailed Macaque

Lion-tailed macaque (Macaca silenus)

Name: Lion-tailed macaque (Macaca silenus)
Where they live: Southwestern India.
Size: About 40–61 cm (16–24 in) long, with a tail of 24–38 cm (9–15 in).
Habitat: Forests.
What they eat: Fruit, leaves, stems, flowers, buds, fungi, insects, lizards, tree frogs, and small mammals.
Status: Endangered (EN) – only 2,400–2,500 individuals left, and their population is decreasing.

Mandrill

Mandrill (Mandrillus sphinx)

Name: Mandrill (Mandrillus sphinx)
Where they live: Western Africa.
Size: About 55–95 cm (22–37 in) long, with a tail of 7–10 cm (3–4 in).
Habitat: Forests.
What they eat: Fruit, seeds, fungi, roots, insects, snails, worms, frogs, lizards, snakes, and small vertebrates.
Status: Vulnerable (VU) – their population is decreasing.

Olive Baboon

Olive baboon (Papio anubis)

Name: Olive baboon (Papio anubis)
Where they live: Equatorial Africa.
Size: About 61–84 cm (24–33 in) long, with a tail of 31–60 cm (12–24 in).
Habitat: Forests, savannas, shrublands, and grasslands.
What they eat: Fruit, gums, insects, eggs, seeds, flowers, grass, roots, and small vertebrates.
Status: Least Concern (LC) – their population is stable.

Kipunji

Kipunji (Rungwecebus kipunji)

Name: Kipunji (Rungwecebus kipunji)
Where they live: Southeastern Africa.
Size: About 85–90 cm (33–35 in) long, with a tail of about 115 cm (45 in).
Habitat: Forests.
What they eat: They eat many things, including bulbs, roots, shoots, seeds, and fruit.
Status: Endangered (EN) – their population is decreasing.

Monkeys of the Colobinae Group

This group includes leaf-eating monkeys like colobuses and langurs.

Angola Colobus

Angola colobus (Colobus angolensis)

Name: Angola colobus (Colobus angolensis)
Where they live: Central Africa.
Size: About 49–68 cm (19–27 in) long, with a tail of 70–83 cm (28–33 in).
Habitat: Forests.
What they eat: Leaves, stems, bark, flowers, buds, shoots, fruits, and insects.
Status: Vulnerable (VU) – their population is decreasing.

Proboscis Monkey

Proboscis monkey (Nasalis larvatus)

Name: Proboscis monkey (Nasalis larvatus)
Where they live: Borneo.
Size: About 61–76 cm (24–30 in) long, with a tail of 50–75 cm (20–30 in).
Habitat: Forests.
What they eat: Fruit, seeds, leaves, shoots, caterpillars, and larvae.
Status: Endangered (EN) – their population is decreasing.

Zanzibar Red Colobus

Zanzibar red colobus (Piliocolobus kirkii)

Name: Zanzibar red colobus (Piliocolobus kirkii)
Where they live: Eastern Africa.
Size: About 41–70 cm (16–28 in) long, with a tail of 42–80 cm (17–31 in).
Habitat: Forests and shrublands.
What they eat: Leaves, fruit, seeds, and flowers.
Status: Endangered (EN) – about 5,900 individuals left, and their population is decreasing.

Javan Surili

Javan surili (Presbytis comata)

Name: Javan surili (Presbytis comata)
Where they live: Island of Java in Indonesia.
Size: About 42–61 cm (17–24 in) long, with a tail of 50–85 cm (20–33 in).
Habitat: Forests.
What they eat: Leaves, fruits, flowers, and seeds.
Status: Vulnerable (VU) – about 5,500 individuals left, and their population is decreasing.

Raffles' Banded Langur

Raffles' banded langur (Presbytis femoralis)

Name: Raffles' banded langur (Presbytis femoralis)
Where they live: Singapore and southern Peninsular Malaysia.
Size: About 42–61 cm (17–24 in) long, with a tail of 50–85 cm (20–33 in).
Habitat: Forests.
What they eat: Fruit, seeds, and leaves.
Status: Critically Endangered (CR) – only 200–250 individuals left, and their population is decreasing.

Olive Colobus

Olive colobus (Procolobus verus)

Name: Olive colobus (Procolobus verus)
Where they live: Western Africa.
Size: About 43–50 cm (17–20 in) long, with a tail of 57–64 cm (22–25 in).
Habitat: Forests.
What they eat: Leaves and flowers.
Status: Vulnerable (VU) – their population is decreasing.

Red-shanked Douc

Red-shanked douc (Pygathrix nemaeus)

Name: Red-shanked douc (Pygathrix nemaeus)
Where they live: Southeastern Asia.
Size: About 61–77 cm (24–30 in) long, with a tail of 55–77 cm (22–30 in).
Habitat: Forests.
What they eat: Leaves, unripe fruit, seeds, and flowers.
Status: Critically Endangered (CR) – their population is decreasing.

Golden Snub-nosed Monkey

Golden snub-nosed monkey (Rhinopithecus roxellana)

Name: Golden snub-nosed monkey (Rhinopithecus roxellana)
Where they live: Central China.
Size: About 57–76 cm (22–30 in) long, with a tail of 51–72 cm (20–28 in).
Habitat: Forests.
What they eat: Leaves, bark, lichen, buds, and fruit seeds.
Status: Endangered (EN) – their population is decreasing.

Tonkin Snub-nosed Monkey

Tonkin snub-nosed monkey (Rhinopithecus avunculus)

Name: Tonkin snub-nosed monkey (Rhinopithecus avunculus)
Where they live: Northern Vietnam.
Size: About 51–65 cm (20–26 in) long, with a tail of 66–92 cm (26–36 in).
Habitat: Forests.
What they eat: Leaves, fruit, flowers, and seeds.
Status: Critically Endangered (CR) – only 80–100 individuals left, and their population is decreasing.

Nilgiri Langur

Nilgiri langur (Semnopithecus johnii)

Name: Nilgiri langur (Semnopithecus johnii)
Where they live: Southern India.
Size: About 41–78 cm (16–31 in) long, with a tail of 69–108 cm (27–43 in).
Habitat: Forests.
What they eat: Leaves, fruit, and flowers.
Status: Vulnerable (VU) – about 9,500–10,000 individuals left, and their population is stable.

Pig-tailed Langur

Pig-tailed langur (Simias concolor)

Name: Pig-tailed langur (Simias concolor)
Where they live: Islands near Sumatra in Indonesia.
Size: About 45–53 cm (18–21 in) long, with a tail of 13–18 cm (5–7 in).
Habitat: Forests.
What they eat: Leaves, fruit, and berries.
Status: Critically Endangered (CR) – their population is decreasing.

Cat Ba Langur

Cat Ba langur (Trachypithecus poliocephalus)

Name: Cat Ba langur (Trachypithecus poliocephalus)
Where they live: Cát Bà Island, Vietnam.
Size: About 40–76 cm (16–30 in) long, with a tail of 57–110 cm (22–43 in).
Habitat: Forests and caves.
What they eat: Leaves, flowers, and fruit.
Status: Critically Endangered (CR) – only 30–35 individuals left, but their population is increasing!

Dusky Leaf Monkey

Dusky leaf monkey (Trachypithecus obscurus)

Name: Dusky leaf monkey (Trachypithecus obscurus)
Where they live: Southeastern Asia.
Size: About 42–61 cm (17–24 in) long, with a tail of 50–85 cm (20–33 in).
Habitat: Forests.
What they eat: Leaves, shoots, fruit, and seedlings.
Status: Endangered (EN) – their population is decreasing.

François' Langur

François' langur (Trachypithecus francoisi)

Name: François' langur (Trachypithecus francoisi)
Where they live: Southern Asia.
Size: About 40–76 cm (16–30 in) long, with a tail of 57–110 cm (22–43 in).
Habitat: Forests, rocky areas, and caves.
What they eat: Leaves, fruit, seeds, and insects.
Status: Endangered (EN) – about 2,000–2,100 individuals left, and their population is decreasing.

Popa Langur

Name: Popa langur (Trachypithecus popa)
Where they live: Myanmar.
Size: About 40–76 cm (16–30 in) long, with a tail of 57–110 cm (22–43 in).
Habitat: Forests.
What they eat: Leaves, flowers, and fruit.
Status: Critically Endangered (CR) – only 130–180 individuals left, and their population is decreasing.

Images for kids

Preuss's monkey (Allochrocebus preussi)
Sun-tailed monkey (Allochrocebus solatus)
Collared mangabey (Cercocebus torquatus)
Golden-bellied mangabey (Cercocebus chrysogaster)
Sanje mangabey (Cercocebus sanjei)
Sooty mangabey (Cercocebus atys)
White-naped mangabey (Cercocebus lunulatus)
Campbell's mona monkey (Cercopithecus campbelli)
Crested mona monkey (Cercopithecus pogonias)
De Brazza's monkey (Cercopithecus neglectus)
Dent's mona monkey (Cercopithecus denti)
Greater spot-nosed monkey (Cercopithecus nictitans)
Hamlyn's monkey (Cercopithecus hamlyni)
Lesser spot-nosed monkey (Cercopithecus petaurista)
Lesula (Cercopithecus lomamiensis)
Lowe's mona monkey (Cercopithecus lowei)
Mona monkey (Cercopithecus mona)
Moustached guenon (Cercopithecus cephus)
Red-eared guenon (Cercopithecus erythrotis)
Red-tailed monkey (Cercopithecus ascanius)
Roloway monkey (Cercopithecus roloway)
Sclater's guenon (Cercopithecus sclateri)
White-throated guenon (Cercopithecus erythrogaster)
Wolf's mona monkey (Cercopithecus wolfi)
Bale Mountains vervet (Chlorocebus djamdjamensis)
Dryas monkey (Chlorocebus dryas)
Grivet (Chlorocebus aethiops)
Malbrouck (Chlorocebus cynosuros)
Tantalus monkey (Chlorocebus tantalus)
Vervet monkey (Chlorocebus pygerythrus)
Blue Nile patas monkey (Erythrocebus poliophaeus)
Black crested mangabey (Lophocebus aterrimus)
Grey-cheeked mangabey (Lophocebus albigena)
Toque macaque (Macaca sinica)
Arunachal macaque (Macaca munzala)
Assam macaque (Macaca assamensis)
Barbary macaque (Macaca sylvanus)
Bonnet macaque (Macaca radiata)
Booted macaque (Macaca ochreata)
Celebes crested macaque (Macaca nigra)
Crab-eating macaque (Macaca fascicularis)
Formosan rock macaque (Macaca cyclopis)
Gorontalo macaque (Macaca nigrescens)
Japanese macaque (Macaca fuscata)
Moor macaque (Macaca maura)
Northern pig-tailed macaque (Macaca leonina)
Pagai Island macaque (Macaca pagensis)
Rhesus macaque (Macaca mulatta)
Southern pig-tailed macaque (Macaca nemestrina)
Stump-tailed macaque (Macaca arctoides)
Tibetan macaque (Macaca thibetana)
Tonkean macaque (Macaca tonkeana)
White-cheeked macaque (Macaca leucogenys)
Drill (Mandrillus leucophaeus)
Angolan talapoin (Miopithecus talapoin)
Gabon talapoin (Miopithecus ogouensis)
Chacma baboon (Papio ursinus)
Guinea baboon (Papio papio)
Hamadryas baboon (Papio hamadryas)
Kinda baboon (Papio kindae)
Yellow baboon (Papio cynocephalus)
Gelada (Theropithecus gelada)
Black colobus (Colobus satanas)
King colobus (Colobus polykomos)
Mantled guereza (Colobus guereza)
Ursine colobus (Colobus vellerosus)
Pennant's colobus (Piliocolobus pennantii)
Preuss's red colobus (Piliocolobus preussi)
Tana River red colobus (Piliocolobus rufomitratus)
Udzungwa red colobus (Piliocolobus gordonorum)
Ugandan red colobus (Piliocolobus tephrosceles)
Western red colobus (Piliocolobus badius)
Black-crested Sumatran langur (Presbytis melalophos)
Hose's langur (Presbytis hosei)
Maroon leaf monkey (Presbytis rubicunda)
Siberut langur (Presbytis siberu)
Miller's langur (Presbytis canicrus)
Robinson's banded langur (Presbytis robinsoni)
Sarawak surili (Presbytis chrysomelas)
Thomas's langur (Presbytis thomasi)
White-fronted surili (Presbytis frontata)
White-thighed surili (Presbytis siamensis)
Black-shanked douc (Pygathrix nigripes)
Gray-shanked douc (Pygathrix cinerea)
Black-and-white snub-nosed monkey (Rhinopithecus bieti)
Gray snub-nosed monkey (Rhinopithecus brelichi)
Myanmar snub-nosed monkey (Rhinopithecus strykeri)
Black-footed gray langur (Semnopithecus hypoleucos)
Nepal gray langur (Semnopithecus schistaceus)
Northern plains gray langur (Semnopithecus entellus)
Tarai gray langur (Semnopithecus hector)
Tufted gray langur (Semnopithecus priam)
Purple-faced langur (Semnopithecus vetulus)
Annamese langur (Trachypithecus margarita)
Capped langur (Trachypithecus pileatus)
Delacour's langur (Trachypithecus delacouri)
East Javan langur (Trachypithecus auratus)
Gee's golden langur (Trachypithecus geei)
Germain's langur (Trachypithecus germaini)
Hatinh langur (Trachypithecus hatinhensis)
Indochinese grey langur (Trachypithecus crepuscula)
Laotian langur (Trachypithecus laotum)
Phayre's leaf monkey (Trachypithecus phayrei)
Shortridge's langur (Trachypithecus shortridgei)
Selangor silvered langur (Trachypithecus selangorensis)
Silvery lutung (Trachypithecus cristatus)
West Javan langur (Trachypithecus mauritius)
White-headed langur (Trachypithecus leucocephalus)

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List of cercopithecoids Facts for Kids. Kiddle Encyclopedia.