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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Superclassis/Classis: Actinopterygii
Classis/Subclassis: Actinopteri
Subclassis/Infraclassis: Neopterygii
Infraclassis: Teleostei
Megacohors: Osteoglossocephalai
Supercohors: Clupeocephala
Cohors: Euteleosteomorpha
Subcohors: Neoteleostei
Infracohors: Eurypterygia
Sectio: Ctenosquamata
Subsectio: Acanthomorphata
Divisio/Superordo: Acanthopterygii
Subdivisio: Percomorphaceae
Series: Ovalentaria
Superordo: Atherinomorphae
Ordo: Cyprinodontiformes
Subordo: Aplocheiloidei

Familia: Rivulidae
Genus: Maratecoara
Species: M. formosa – M. lacortei – M. splendida

Maratecoara Costa, 1995
Primary references

Maratecoara is a genus of killifish in the family Rivulidae.[2] These annual killifish are endemic to seasonal pools, swamps and lagoons in the upper Araguaia–Tocantins and middle Xingu river basins in Brazil.[3][4] Most are from savanna regions, but M. gesmonei is from the Amazon rainforest.[4]

They are small fish, up to 5 cm (2.0 in) in total length.[2] The males are mottled or spotted orange-red and turquoise-blue, and have long, pointed fins. The much duller females have "normal" fins.[3][4]

Maratecoara and the closely related Papiliolebias, Pituna, Plesiolebias and Stenolebias form a clade, Plesiolebiasini.[3]

There are currently 4 recognized species in Maratecoara:[2]

Maratecoara formosa W. J. E. M. Costa & G. C. Brasil, 1995
Maratecoara gesmonei D. T. B. Nielsen, Martins & Britzke, 2014
Maratecoara lacortei Lazara, 1991
Maratecoara splendida W. J. E. M. Costa, 2007


Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Maratecoara". Catalog of Fishes. California Academy of Sciences. Retrieved 15 September 2019.
Froese, Rainer and Pauly, Daniel, eds. (2018). Species of Maratecoara in FishBase. November 2018 version.
Costa, W.J.E.M. (2007). "Taxonomy of the plesiolebiasine killifish genera Pituna, Plesiolebias and Maratecoara (Teleostei: Cyprinodontiformes: Rivulidae), with descriptions of nine new species". Zootaxa. 1410: 1–41.
Nielsen, D.T.B.; M. Martins; R. Britzke (2014). "Description of a new species of annual fish, Maratecoara gesmonei (Cyprinodontiformes: Rivulidae) from the rio Xingu system, Amazon basin, Brazil". Aqua, International Journal of Ichthyology. 20 (2): 87–96.

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