Formosan rock macaque
Macaca cyclopis (Swinhoe, 1863)
The formosan rock macaque (Macaca cyclopis) is a species in the family Cercopithecidae, order Primates. Recorded adults weigh 6 kg to 6.03 kg and live up to 21.5 years. Its IUCN Red List status is Least Concern.
No freely licensed photo yet
Quick facts about the formosan rock macaque
- Weight
- 6 kgsrc for Weight
- Length
- Not recorded
- Lifespan
- 21.5 yearssrc for Lifespan
- Diet
- Herbivoresrc for Diet
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 163 dayssrc for Gestation
- Young per litter or clutch
- 1src for Young per litter or clutch
- Age at maturity
- 4.52 yearssrc for Age at maturity
- Litters or clutches a year
- 0.885src for Litters or clutches a year
- Active
- By day (diurnal)src for Active
- Lifestyle
- Scansorialsrc for Lifestyle
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Photos of the formosan rock macaque
Only freely licensed photos are shown. Each carries its creator and licence.
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Where does the formosan rock macaque live?
Not recorded
What is the formosan rock macaque?
The Formosan rock macaque (Macaca cyclopis), also known as the Formosan rock monkey or Taiwanese macaque, is a macaque endemic to the island of Taiwan, which has also been introduced to Japan. Besides humans, Formosan rock macaques are the only native primates living in Taiwan. The species was first described by Robert Swinhoe in 1862.
From the Wikipedia article “Formosan rock macaque” (en.wikipedia.org/w/index.php?title=Formosan_rock_macaque&oldid=1373321503), 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 formosan rock macaque endangered?
The formosan rock macaque 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. What the categories mean.
How is the formosan rock macaque classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderPrimates
- familyCercopithecidae
- genusMacaca
- SpeciesMacaca cyclopis (Swinhoe, 1863)
Synonyms Macaca affinis, Macacus affinis, Macacus cyclopis
Other names and names in other languages (29)
- Taiwan macaqueEnglish
- Taiwan macaqueEnglish
- Taiwanese macaqueEnglish
- Taiwanese macaqueEnglish
- مكاك تايوانيArabic
- utungbnn
- makak formozskýCzech
- FormosamakakGerman
- Formosa-MakakGerman
- RundgesichtsmakakGerman
- Μακάκος του ΤαϊβάνGreek
- Macaca De FormosaSpanish
- Macaco de FormosaSpanish
- taiwaninmakakiFinnish
- Macaque de TaïwanFrench
- Macaque De FormoseFrench
- tajvani makákóHungarian
- Macaco di TaiwanItalian
- タイワンザルJapanese
- 대만원숭이Korean
- FormosamakaakDutch
- Taiwanese MakaakDutch
- makak tajwańskiPolish
- Macaco-de-FormosaPortuguese
- Тайваньский резусRussian
- tajvanski makakSlovenian
- Formoza kaya şebeğiTurkish
- 台灣獼猴Chinese
- 臺灣獼猴Chinese
Relatives of the formosan rock macaque
Other species in the same genus Macaca.

Rhesus macaque
Macaca mulatta

Barbary macaque
Macaca sylvanus

Japanese macaque
Macaca fuscata

Crab-eating macaque
Macaca fascicularis

Lion-tailed macaque
Macaca silenus

Celebes crested macaque
Macaca nigra
CompareFormosan rock macaque vs Rhesus macaqueFormosan rock macaque vs Barbary macaqueFormosan rock macaque vs Japanese macaqueFormosan rock macaque vs Crab-eating macaque
Common questions
Answered only where our data holds the answer.
How big is the formosan rock macaque?
An adult formosan rock macaque weighs 6 kg, according to values recorded on Wikidata.
Is the formosan rock macaque endangered?
The formosan rock macaque is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
How long does the formosan rock macaque live?
The formosan rock macaque has a recorded lifespan of 21.5 years.
How long is the formosan rock macaque pregnant?
The recorded gestation period is 163 days.
What kind of animal is the formosan rock macaque?
The formosan rock macaque (Macaca cyclopis) 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). Formosan rock macaque (Macaca cyclopis). Retrieved from https://creaturedata.com/animals/formosan-rock-macaque
“Formosan rock macaque (Macaca cyclopis).” CreatureData, 2026, https://creaturedata.com/animals/formosan-rock-macaque.
@misc{formosan_rock_macaque_2026,
title = {Formosan rock macaque (Macaca cyclopis)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/formosan-rock-macaque},
note = {Data as of 2026-11-11}
}