Piabarchus stramineus (Eigenmann, 1908)

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 : 42

publication ID

https://doi.org/ 10.1590/1982-0224-20170094

DOI

https://doi.org/10.5281/zenodo.3682175

persistent identifier

https://treatment.plazi.org/id/03894103-386E-FFC0-FF66-FF2A2A1B02E9

treatment provided by

Carolina

scientific name

Piabarchus stramineus (Eigenmann, 1908)
status

 

Piabarchus stramineus (Eigenmann, 1908)

Fig. 11 View Fig

Body elongated; greatest body depth contained 4.0 to 4.2 and caudal peduncle depth 10.6 to 11.8 times in SL; head length 4.6 to 4.8, predorsal distance 2.1 to 2.2, and caudal peduncle length 6.8 to 7.4; snout length 3.6 to 4.0, horizontal orbital diameter 2.0 to 2.5 and interorbital distance 2.5 to 2.8 in HL. Mouth terminal; inner row of premaxilla with 4 teeth, outer row with 5 teeth; dentary with 9 or 10 teeth, and maxilla with 2 teeth. Lateral line with 36-38 pored scales; transverse series above lateral line with 4 rows and below with 3. Dorsal fin with 11 or 12, pectoral fin with 14 or 15, pelvic fin 9, anal fin with 20-22, and caudal with 19 rays. Ground color silvery to yellowish; silvery longitudinal band (brown or grey in preserved specimens), from humeral spot to caudal peduncle; black oval, vertically elongated, humeral spot. Caudal fin yellowish or oranged; remaining fins hyaline, with dusky border ( Graça, Pavanelli, 2007).

Maximum standard length. 84.0 mm ( Graça, Pavanelli, 2007).

Distribution. Río de la Plata basin and rio São Francisco basin.

Remarks. Piabarchus stramineus was identified as B. stramineus by Graça, Pavanelli (2007). Thomaz et al. (2015), in a molecular phylogeny of the Stevardiinae , proposed the new combination.

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