Marca's marmoset
Mico marcai (Alperin, 1993)
The marca's marmoset (Mico marcai) is a species in the family Callitrichidae, order Primates. Recorded adults weigh about 357.2 g and live up to 16.5 years. Its IUCN Red List status is Vulnerable.

Quick facts about the marca's marmoset
- Weight
- 357.2 gsrc for Weight
- Length
- Not recorded
- Lifespan
- 16.5 yearssrc for Lifespan
- Diet
- Herbivoresrc for Diet
- Longest recorded lifespan
- 16.8 years
- Main food
- Not recorded
- Habitat
- Not recorded
- Gestation
- 144 dayssrc for Gestation
- Young per litter or clutch
- 1.87src for Young per litter or clutch
- Age at maturity
- 11 months – 16.5 monthssrc for Age at maturity
- Litters or clutches a year
- 2.31src for Litters or clutches a year
- Active
- By day (diurnal)src for Active
- Lifestyle
- Arborealsrc for Lifestyle
- Conservation status
- Vulnerable (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the marca's marmoset live?
Not recorded
What is the marca's marmoset?
The Marca's marmoset (Mico marcai) is a species of marmoset that is endemic to the Amazon, in the Aripuanã-Manicoré interfluvium in Brazil. Its body is light grey, with orange legs, a black tail, a pinkish face, and naked ears. It is about 9 inches (23 cm) long, excluding the tail, and it has a 15-inch (38 cm) long tail. It weighs about 12 ounces (340 g).
It was previously thought to be virtually unknown; in 2008 the IUCN noted that it had never been seen in the wild, though it has been observed since then. However, later studies found the Manicore marmoset (Mico manicorensis), discovered in the Campos Amazônicos National Park in 2000, to be conspecific with M. marcai, and thus both were synonymized.
From the Wikipedia article “Marca's marmoset” (en.wikipedia.org/w/index.php?title=Marca%27s_marmoset&oldid=1356931760), 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 marca's marmoset endangered?
The marca's marmoset is listed as Vulnerable on the IUCN Red List: it faces a high risk of extinction in the wild.
- 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 Vulnerable species. What the categories mean.
How is the marca's marmoset classified?
- kingdomAnimalia
- phylumChordata
- classMammalia
- orderPrimates
- familyCallitrichidae
- genusMico
- SpeciesMico marcai (Alperin, 1993)
Synonyms Callithrix argentata marcai, Callithrix manicorensis, Callithrix marcai, Mico manicorensis
Other names and names in other languages (18)
- Manicoré marmosetEnglish
- Marca’s marmosetEnglish
- Marca’s marmosetEnglish
- قشة ماركاArabic
- MarcaseidenäffchenGerman
- ManicoréseidenäffchenGerman
- SagüiSpanish
- Tití de MarcaSpanish
- Ouistiti du Rio RooseveltFrench
- マルカマーモセットJapanese
- ManicorézijdeaapjeDutch
- Marca's ZijdeaapjeDutch
- uistiti reliktowaPolish
- Sagüi de MarcaPortuguese
- Sagui-de-manicoréPortuguese
- Sagui-de-marcaPortuguese
- Игрунка МаркаRussian
- 馬氏狨Chinese
Relatives of the marca's marmoset
Other species in the same genus Mico.

Silvery marmoset
Mico argentatus

Emilia's marmoset
Mico emiliae

Gold-and-white marmoset
Mico chrysoleucos

Santarem marmoset
Mico humeralifer

White marmoset
Mico leucippe

Hershkovitz's marmoset
Mico intermedius
CompareMarca's marmoset vs Silvery marmosetMarca's marmoset vs Emilia's marmosetMarca's marmoset vs Gold-and-white marmosetMarca's marmoset vs Santarem marmoset
Common questions
Answered only where our data holds the answer.
How big is the marca's marmoset?
An adult marca's marmoset weighs 357.2 g, according to values recorded on Wikidata.
Is the marca's marmoset endangered?
The marca's marmoset is listed as Vulnerable on the IUCN Red List, meaning it faces a high risk of extinction in the wild.
How long does the marca's marmoset live?
The marca's marmoset has a recorded lifespan of 16.5 years.
How long is the marca's marmoset pregnant?
The recorded gestation period is 144 days.
What kind of animal is the marca's marmoset?
The marca's marmoset (Mico marcai) belongs to the family Callitrichidae 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). Marca's marmoset (Mico marcai). Retrieved from https://creaturedata.com/animals/marcas-marmoset
“Marca's marmoset (Mico marcai).” CreatureData, 2026, https://creaturedata.com/animals/marcas-marmoset.
@misc{marcas_marmoset_2026,
title = {Marca's marmoset (Mico marcai)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/marcas-marmoset},
note = {Data as of 2026-11-11}
}