Mesonauta festivus

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Mesonauta festivus
Mesonauta festivus.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cichliformes
Family: Cichlidae
Genus: Mesonauta
M. festivus
Binomial name
Mesonauta festivus
(Heckel, 1840)

Mesonauta festivus, the flag cichlid, is a species of cichlid native to the Paraná, Paraguay, Madre de Dios, Guaporé, Mamoré, Jamari and Tapajós river basins in Brazil, Peru, Paraguay and Bolivia.[1] It can reach a standard length of 12.1 cm (4.8 in) and is sometimes kept in aquariums.[1]

It was generally recognized as the only valid species in the genus Mesonauta until 1991 when a taxonomic review found that five species should be recognized (a sixth was described in 1998).[2][3] As a consequence aquarium specimens have generally been labelled M. festivus, but this species is seen far less often than some of its relatives, especially M. guyanae, M. insignis and M. mirificus.[4] The other species in the genus have a more northernly range than M. festivus.[2]


  1. ^ a b Froese, Rainer and Pauly, Daniel, eds. (2017). "Mesonauta festivus" in FishBase. January 2017 version.
  2. ^ a b Kullander, S.O.; Silfvergrip, A.M.C. (1991). "Review of the South American cichlid genus Mesonauta Günther (Teleostei, Cichlidae) with descriptions of two new species". Revue Suisse de Zoologie. 92 (2): 407–448. doi:10.5962/bhl.part.79799.
  3. ^ Froese, Rainer and Pauly, Daniel, eds. (2017). Species of Mesonauta in FishBase. January 2017 version.
  4. ^ Kutty, V. (2017). "Is that a Festivum?". Retrieved 28 January 2017.

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