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Brachyhypopomus draco, a new sexually dimorphic species of Neotropical electric fish from southern South America (Gymnotiformes: Hypopomidae)

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Author(s): Julia Giora | Luiz R. Malabarba | William Crampton

Journal: Neotropical Ichthyology
ISSN 1679-6225

Volume: 6;
Issue: 2;
Start page: 159;
Date: 2008;
Original page

Keywords: Electric Organ Discharge | EOD | Rio Uruguay | Laguna dos Patos | Rio Tramandaí

ABSTRACT
Brachyhypopomus draco, new species, is described from central, southern and coastal regions of Rio Grande do Sul state, Brazil, and Uruguay. It is diagnosed from congeners by, among other characters, the shape of the distal portion of the caudal filament in mature males, which during the reproductive period forms a distinct paddle shape structure.Brachyhypopomus draco, espécie nova, é descrita para as regiões central, sul e costeira do estado do Rio Grande do Sul, Brasil, e Uruguai. Ela é diagnosticada de seus congêneres, entre outros caracteres, pela porção final do filamento caudal de machos maduros, que adquire a forma de um remo durante o período reprodutivo, .
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