Brachyhypopomus gauderio Giora, Malabarba, 2009

Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da & Pavanelli, Carla Simone, 2018, Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated, Neotropical Ichthyology 16 (2), pp. 1-111 : 57-58

Brachyhypopomus gauderio Giora, Malabarba, 2009

Fig. 17

Body elongated and compressed; greatest depth contained 5.8 to 8.1 times in TL; head length 7.6 to 8.6, anal-fin base length 1.2 to 1.4, caudal-peduncle length 2.0 to 3.1, preanal distance 3.9 to 5.0 and prepectoral distance 7.0 to 7.9 in LEA; snout length 2.4 to 4.3, horizontal orbital diameter 8.2 to 11.1 and least interorbital width 3.3 to 4.8 in HL. Mouth terminal. Pectoral fin with 14-17 rays and anal fin with 179- 226 rays; transverse series above lateral line with 7-8 scale rows ( Graça, Pavanelli, 2007; Giora, Malabarba, 2009). Ground color yellowish to pale brown; dorsal region and lower-half of body with dark-brown transverse and irregular bars; anal fin hyaline, with dark-brown spots.

Maximum total length. 160.0 mm.

Distribution. Río de basin, Laguna dos Patos and rio Tramandaí drainages.

Remarks. Brachyhypopomus gauderio was identified as B. cf. pinnicaudatus by Graça, Pavanelli (2007). Giora, Malabarba (2009) described the new species from the Laguna dos Patos and rio Tramandaí drainages, río Paraguay and río Uruguay basins. Brachyhypopomus gauderio is a non-native species from the upper rio Paraná, and its occurrence in the region can be associated with its introduction as a live bait by anglers.

Figures

Fig. 17. a. Brachyhypopomus gauderio, NUP 2510, 112.2, lagoa do Aurélio, Taquarussu, State of Mato Grosso do Sul. b. Gymnorhamphichthys britskii, NUP 3337, 115.0 mm TL, rio Baía, Taquarussu, State of Mato Grosso do Sul. c. Rhamphichthys hahni, 567.3 mm TL, uncat. d. Eigenmannia guairaca, NUP 16151, 112.3 mm TL, córrego Água Boa, tributary of the rio Iguatemi, Mundo Novo, Mato Grosso do Sul State. e. Eigenmannia trilineata, 109.2 mm TL, fresh specimen, uncat. f. Eigenmannia virescens, 205.0 mm TL, uncat. g. Sternopygus macrurus, NUP 2096, 280.0 mm TL, rio Paraná, Porto Rico, State of Paraná.