Red-tailed monkey
Cercopithecus ascanius (Audebert, 1799)
The red-tailed monkey (Cercopithecus ascanius) is a species in the family Cercopithecidae, order Primates. Recorded adults weigh 3.2 kg to 4.62 kg and live up to 28.3 years. Its IUCN Red List status is Least Concern.

Quick facts about the red-tailed monkey
- Weight
- 3.2 kg – 4.62 kgsrc for Weight
- Length
- Not recorded
- Lifespan
- 28.3 yearssrc for Lifespan
- Diet
- Herbivoresrc for Diet
- Longest recorded lifespan
- 31.2 years
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 161 dayssrc for Gestation
- Young per litter or clutch
- 1src for Young per litter or clutch
- Age at maturity
- 4.61 yearssrc for Age at maturity
- Litters or clutches a year
- 0.52src for Litters or clutches a year
- Active
- By day (diurnal)src for Active
- Lifestyle
- Arborealsrc for Lifestyle
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the red-tailed monkey live?
Not recorded
What is the red-tailed monkey?
The red-tailed monkey (Cercopithecus ascanius), also known as the black-cheeked white-nosed monkey, red-tailed guenon, redtail monkey, or Schmidt's guenon, is a species of primate in the family Cercopithecidae.
It is found in Angola, Central African Republic, Democratic Republic of the Congo, Kenya, Rwanda, South Sudan, Tanzania, Uganda, Zambia, and possibly Burundi. The red-tailed monkey is usually black, red, or orange. Although native to this region, it has spread north and south as well as it can survive in different habitats and under different conditions. It is a distinct creature in its habitats and is gradually becoming endangered due to deforestation and over-exploitation through hunting and predation.
From the Wikipedia article “Red-tailed monkey” (en.wikipedia.org/w/index.php?title=Red-tailed_monkey&oldid=1381548588), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the red-tailed monkey endangered?
The red-tailed monkey is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species.
How is the red-tailed monkey classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderPrimates
- familyCercopithecidae
- genusCercopithecus
- SpeciesCercopithecus ascanius (Audebert, 1799)
Synonyms Simia ascanius
Other names and names in other languages (35)
- Black-cheeked white-nosed monkeyEnglish
- Black-cheeked white-nosed monkeyEnglish
- Red-tailed guenonEnglish
- Red-tailed guenonEnglish
- Red-tailed guenonEnglish
- Redtail monkeyEnglish
- Redtail monkeyEnglish
- Schmidt's guenonEnglish
- Schmidt's guenonEnglish
- Schmidt’s guenonEnglish
- سعدان أحمر الذيلArabic
- غينون أحمر الذيلArabic
- نسناس أحمر الذيلArabic
- kočkodan černolícíCzech
- RotschwanzmeerkatzeGerman
- Kongo-WeißnaseGerman
- Kongo-WeißnasenmeerkatzeGerman
- Rotschwanz-MeerkatzeGerman
- Ερυθρόουρος ΚερκοπίθηκοςGreek
- Cercopiteco de Cola RojaSpanish
- punahäntämarakattiFinnish
- AscagneFrench
- Cercopithèque ascagneFrench
- fehérarcú cerkófHungarian
- Cercopiteco nasobianco del CongoItalian
- アカオザルJapanese
- Raudonuodegė markataLithuanian
- Svartkinnet HvitnesemarekattNorwegian Bokmål
- RoodstaartmeerkatDutch
- koczkodan rudoogonowyPolish
- Macaco-de-cauda-vermelhaPortuguese
- Мартышка ШмидтаRussian
- Краснохвостая мартышкаRussian
- Svartkindad vitnäsaSwedish
- ลิงหางแดงThai
Relatives of the red-tailed monkey
Other species in the same genus Cercopithecus.
Lesula
Cercopithecus lomamiensis

Diana monkey
Cercopithecus diana

Blue monkey
Cercopithecus mitis

De Brazza's monkey
Cercopithecus neglectus

Mona monkey
Cercopithecus mona

Roloway monkey
Cercopithecus roloway
CompareRed-tailed monkey vs LesulaRed-tailed monkey vs Diana monkeyRed-tailed monkey vs Blue monkeyRed-tailed monkey vs De Brazza's monkey
Common questions
Answered only where our data holds the answer.
How big is the red-tailed monkey?
An adult red-tailed monkey weighs 3.2 kg – 4.62 kg, according to values recorded on Wikidata.
Is the red-tailed monkey endangered?
The red-tailed monkey is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
How long does the red-tailed monkey live?
The red-tailed monkey has a recorded lifespan of 28.3 years.
How long is the red-tailed monkey pregnant?
The recorded gestation period is 161 days.
What kind of animal is the red-tailed monkey?
The red-tailed monkey (Cercopithecus ascanius) belongs to the family Cercopithecidae in the order Primates.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Red-tailed monkey (Cercopithecus ascanius). Retrieved from https://creaturedata.com/animals/red-tailed-monkey
“Red-tailed monkey (Cercopithecus ascanius).” CreatureData, 2026, https://creaturedata.com/animals/red-tailed-monkey.
@misc{red_tailed_monkey_2026,
title = {Red-tailed monkey (Cercopithecus ascanius)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/red-tailed-monkey},
note = {Data as of 2026-11-11}
}