The Marca's marmoset (Mico marcai) is a species of marmoset that is endemic to the Amazon, in the Aripuanã-Manicoré interfluvium in Brazil.[5] 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,[3] though it has been observed since then.[6][7] 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.[5][3]
^Rylands AB, Mittermeier RA (2009). "The Diversity of the New World Primates (Platyrrhini)". In Garber PA, Estrada A, Bicca-Marques JC, Heymann EW, Strier KB (eds.). South American Primates: Comparative Perspectives in the Study of Behavior, Ecology, and Conservation. Springer. pp. 23–54. ISBN978-0-387-78704-6.
^van Roosmalen, M. G. M.; van Roosmalen, T.; Mittermeier, R. A.; Rylands, A. B. (2000). "Two new species of marmoset, genus Callithrix Erxleben, 1777 (Callitrichidae, Primates), from the Tapajós/Madeira interfluvium, South Central Amazonia, Brazil". Neotropical Primates. 8: 2–18.
^ abGarbino, G.S.T. (2014). "The Taxonomic Status of Mico marcai (Alperin 1993) and Mico manicorensis (van Roosmalen et al. 2000) (Cebidae, Callitrichinae) from Southwestern Brazilian Amazonia". International Journal of Primatology. 35 (2): 529–546. doi:10.1007/s10764-014-9766-4. ISSN1573-8604. S2CID18578794.