Red-eared guenon

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Red-eared guenon [1]
Red-Eared Guenon at CERCOPAN sanctuary.JPG
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Primates
Suborder: Haplorhini
Infraorder: Simiiformes
Family: Cercopithecidae
Genus: Cercopithecus
C. erythrotis
Binomial name
Cercopithecus erythrotis
Waterhouse, 1838 [3]
Red-eared Guenon area.png
Red-eared guenon range

The red-eared guenon, red-eared monkey, or russet-eared guenon (Cercopithecus erythrotis) is a species of primate in the family Cercopithecidae. It is found in Cameroon, Equatorial Guinea, and Nigeria. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss, [2] illegal bushmeat hunting and pet trade.



The red-eared guenon is a small, colourful monkey with distinctive facial markings which involve blue fur around its eyes, a brick-red nose and ears, and yellow cheeks. The silky fur on the body consists of banded brown and pale hairs with grey limbs and a long, red tail. The long tails are partially prehensile and are used by infants to cling to the female. The red-eared guenon is an unobtrusive species which produces a quiet trill, unlike the loud long-distance calls made by other guenons. [4] Males average 420 mm head and bodylength, with a 609 mm long tail, females are smaller with a mean head and body length of 384 mm and an average tail length of 553 mm. [5]

Distribution and subspecies

There are two recognised subspecies, which are listed below with their distributions: [3] [5]


The red-eared guenon is found in primary and secondary lowland tropical and sub-montane moist forest, and sometimes lives in close proximity to humans, as on Bioko. [2]


The red-eared guenon is omnivorous and has been recorded eating fruit, leaves, shoots and insects, the latter are important for nutrition, especially for pregnant and lactating females. The red-eared guenon normally forms groups consisting of at least one adult male and around ten females with young which are not as hierarchical as some primate societies. They are territorial but they usually avoid conflict with other groups. The breeding biology of red-eared guenons is little known but similar species give birth to a single infant every one to three years, with pregnancy taking five or six months.


The red-eared guenon is threatened by deforestation and by the bushmeat trade, particularly on Bioko, where it is frequently recorded in bushmeat market in Malabo. [2] In 2006, it was estimated that about 3,400 red-eared guenons are hunted yearly in the Cross-Sanaga-Bioko coastal forests for the bushmeat trade. [6]

Related Research Articles

Guenon Genus of Old World monkeys

The guenons are the genus Cercopithecus of Old World monkeys. Not all members of this genus have the word "guenon" in their common names; also, because of changes in scientific classification, some monkeys in other genera may have common names that include the word "guenon". Nonetheless, the use of the term guenon for monkeys of this genus is widely accepted.

Mount Cameroon Active volcano in Cameroon near the Gulf of Guinea

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White-throated guenon Species of Old World monkey

The white-throated guenon, also known as the red-bellied monkey and the red-bellied guenon, is a diurnal primate that lives on trees of rainforests or tropical areas of Nigeria and Benin.

Sclaters guenon Species of Old World monkey

Sclater's guenon, also known as Sclater's monkey and the Nigerian monkey, is an Old World monkey that was first described by Reginald Innes Pocock in 1904 and named after Philip Sclater. It is an arboreal and diurnal primate that lives in the forests of southern Nigeria. It should not be confused with the closely related species, the white-throated guenon, which occurs in Nigeria and Benin. Sclater's guenon was formerly classified as a subspecies of the red-eared guenon.

Preusss monkey Species of Old World monkey

The Preuss's monkey, also known as Preuss's guenon, is a diurnal primate that lives terrestrially in mountainous forests of eastern Nigeria, western Cameroon and Bioko in Equatorial Guinea. It was formerly classified as a subspecies of the L'Hoest's monkey.

De Brazzas monkey Species of Old World monkey

De Brazza's monkey is an Old World monkey endemic to the riverine and swamp forests of central Africa. The largest species in the guenon family, it is one of the most widespread arboreal African primates. Aside from size, it can be differentiated from other cercopithecus monkeys by its orange diadem and white beard. Due to its cryptic nature, the species is not well documented in all of its habitats but has shown unique traits such as pair-bonding and aggressive behavior towards other guenons.

Mona monkey Species of Old World monkey

The mona monkey is an Old World monkey that lives in western Africa between Ghana and Cameroon. The mona monkey can also be found on the island of Grenada as it was transported to the island aboard slave ships headed to the New World during the 18th century. This guenon lives in groups of up to thirty-five in forests. It mainly feeds on fruit, but sometimes eats insects and leaves. The mona monkey has brown agouti fur with a white rump. Its tail and legs are black and the face is blue-grey with a dark stripe across the face. The mona monkey carries food in cheek pouches.

Cross–Sanaga–Bioko coastal forests

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Black colobus Species of Old World monkey

The black colobus, or satanic black colobus, is a species of Old World monkey belonging to the genus Colobus. The species is found in a small area of western central Africa. Black colobuses are large, completely covered with black fur, and like all other Colobus monkeys, do not have a thumb. The species has faced large declines in population due to habitat destruction and hunting by humans, and was consequently listed as Vulnerable on the IUCN Red List in 1994.

Cameroonian Highlands forests

The Cameroonian Highlands forests are a montane tropical moist broadleaf forest ecoregion located on the range of mountains that runs inland from the Gulf of Guinea and forms the border between Cameroon and Nigeria. This is an area of forest and grassland which is becoming increasingly more populous as more and more land is cleared for agriculture.

Collared mangabey Species of Old World monkey

The collared mangabey, also known as the red-capped mangabey, or the white-collared mangabey, is a species of primate in the family Cercopithecidae of Old World monkeys. It formerly included the sooty mangabey as a subspecies. As presently defined, the collared mangabey is monotypic.

Lesser spot-nosed monkey Species of Old World monkey

The lesser spot-nosed monkey, lesser spot-nosed guenon, lesser white-nosed guenon, or lesser white-nosed monkey is a species of primate in the family Cercopithecidae. It is found in Ivory Coast, Ghana, Guinea, Liberia, Sierra Leone, Togo, Guinea-Bissau, and possibly Senegal.

Crested mona monkey Species of Old World monkey

The crested mona monkey, also known as the crowned guenon, crowned monkey, golden-bellied guenon, or golden-bellied monkey,, is a species of African primate in the family Cercopithecidae found in west central Africa.

Northern needle-clawed bushbaby Species of primate

The northern needle-clawed bushbaby is a species of strepsirrhine primate in the family Galagidae. It is found in the coastal region of Cameroon and Nigeria, and on the island of Bioko, Equatorial Guinea in lower-elevation forests that provide its specialized diet of tree gum and resins.

Douala Edéa National Park

Douala-Edéa National Park, formerly known as Douala-Edéa Wildlife Reserve, is a national park in the Littoral Region of Cameroon.

Niger Delta red colobus Species of Old World monkey

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<i>Allochrocebus</i> Genus of Old World monkeys

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Drill (animal) Species of primate

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Red-tailed monkey Species of Old World monkey

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  1. Groves, C. P. (2005). Wilson, D. E.; Reeder, D. M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Baltimore: Johns Hopkins University Press. p. 156. ISBN   0-801-88221-4. OCLC   62265494.
  2. 1 2 3 4 Oates, J. F.; Gippoliti, S. & Groves, C. P. (2008). "Cercopithecus erythrotis". The IUCN Red List of Threatened Species . IUCN. 2008: e.T4218A10651543. doi: 10.2305/IUCN.UK.2008.RLTS.T4218A10651543.en . Retrieved 12 January 2018.
  3. 1 2 "Cercopithecus erythrotis Waterhouse, 1838". Integrated Taxonomic Information System (ITIS) ( Retrieved 23 November 2016.
  4. "Red-eared Guenon (Cercopithecus erythrotis)". Wildscreen Arkive. Wildscreen. Archived from the original on 2016-11-24. Retrieved 23 November 2016.
  5. 1 2 Jonathan Kingdon; David Happold; Thomas Butynski; Michael Hoffmann; Meredith Happold; Jan Kalina (2013). Mammals of Africa Volumes 1-6. A&C Black. pp. 373–375. ISBN   978-1408189962.
  6. Fa, J.E., Seymour, S., Dupain, J.E.F., Amin, R., Albrechtsen, L. and Macdonald, D. (2006). "Getting to grips with the magnitude of exploitation: bushmeat in the Cross–Sanaga rivers region, Nigeria and Cameroon". Biological Conservation. 129 (4): 497–510. doi:10.1016/j.biocon.2005.11.031.CS1 maint: uses authors parameter (link)