Peces Criollos - Freshwater Fishes of Argentina Peces Criollos - Freshwater Fishes of Argentina
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Roeboides prognathus is a synonym of R. affinis

Roeboides affinis
Roeboides affinis (photo: from publication)

Roeboides prognathus (Boulenger, 1895)
is a junior synonym of
Roeboides affinis (Günther, 1868)

published in:
Lucena, C.A.S. (2007):
Revisão taxonômica das espécies do gênero Roeboides grupo-affinis (Ostariophysi, Characiformes, Characidae).
Iheringia, Sér. Zool. 97 (2): 117-136   [download paper here]

abstract (from publication):
A taxonomic study of the species of Roeboides affinis-group is presented. Seven species are recognized: R. affinis (Günther, 1868) which inhabits the Amazonian, Orinoco, and Paraná-Paraguay basins, the rivers of Guyana and Suriname, and Tocantins-Araguaia system; R. biserialis Garman, 1890 from river Amazonas basin, R. descalvadensis Fowler, 1932 which occurs in the Amazonas and Paraná-Paraguay basins; R. oligistos Lucena, 2000 which inhabits the Amazonian basin; R. numerosus Lucena, 2000 of the river Orinoco basin; R. xenodon (Reinhardt, 1851) from the river São Francisco basin, and R. sazimai n. sp., known only from the Parnaíba and Pindaré-Mearim drainages, northeastern Brazil. 
Roeboides paranensis Pignalberi, 1975 is considered a synonym of R. descalvadensis; Roeboides prognathus and R. thurni Eigenmann, 1912 are synonyms of R. affinis. Lectotypes are designaded to R. affinis, R. biserialis and R. francisci Steindachner, 1908. A identification key to the species of Roeboides affinis-group is given.

published on PecesCriollos 2007-ix-09

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