Astyanax aff. fasciatus (Cuvier, 1819)

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 : 26

Astyanax aff. fasciatus (Cuvier, 1819)

Fig. 7

Body elongated; greatest depth contained 2.9 to 3.4 and caudal peduncle depth 10.4 to 11.1 times in SL; head length 4.5 to 4.6, predorsal distance 2.0 to 2.1 and caudal peduncle length 9.5 to 13.3 in SL; snout length 3.4 to 3.6, horizontal orbital diameter 2.2 to 2.3 and least interorbital width 3.3 to 3.5 in HL. Mouth terminal; inner row of premaxilla with 5 teeth, outer with 4 or 5, dentary with 10-12, and maxilla with one tooth. Lateral line complete, with 34-36 pored scales; transverse series above lateral line with 5 or 5½ scale rows and below with 5 scale rows. Dorsal fin with 11, pectoral fin with 15, pelvic fin with 9, anal fin with 24-28, and caudal fin with 19 rays. Ground color silvery; black vertically elongated humeral blotch; silvery longitudinal band on flank (black in fixed specimens), from humeral blotch to median caudal-fin rays, larger on caudal peduncle, forming oval-shaped, horizontally elongated, blotch. Unpaired fins reddish, paired fins hyaline ( Graça, Pavanelli, 2007).

Maximum standard length. 102.0 mm ( Graça, Pavanelli, 2007).

Distribution. Drainages from Mexico to Argentina.

Figures

Fig. 7. a. Astyanax biotae, NUP 15137, 44.1 mm SL, córrego Peroba, tributary of the rio Ivinheima, Jateí, State of Mato Grosso do Sul. b. Astyanax bockmanni, 67.2 mm SL, fresh specimen, uncat. c. Astyanax aff. fasciatus, NUP 32, 65.0 mm SL, rio Paraná, Porto Rico; d. Astyanax lacustris, 79.9 mm SL, fresh specimen, uncat. e. Astyanax aff. paranae, NUP 3045, 72.9 mm SL, ribeirão Lageado, Marechal Cândido Rondon, State of Paraná. f. Astyanax schubarti, MZUSP 17101, 68.4 mm SL, rio Jaguara-mirim, São Paulo.