Astyanax bockmanni Vari, Castro, 2007

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 bockmanni Vari, Castro, 2007

Fig. 7

Body deep; greatest depth contained 2.4 to 2.7 and caudal peduncle depth 8.7 to 9.2 times in SL; head length 4.0 to 4.1, predorsal distance 1.9 to 2.0 and caudal peduncle length 8.0 to 12.4 in SL; snout length 3.7 to 4.4, horizontal orbital diameter 2.4 to 2.5 and least interorbital width 2.8 to 2.9 in HL. Mouth terminal; inner row of premaxilla with 5 teeth, outer with 4 or 5, dentary with 9 or 10, and maxilla with 2 teeth. Lateral line complete, with 37 or 38 pored scales; transverse series above lateral line with 5½ or 6 scale rows and below with 5 or 6 scale rows. Dorsal fin with 11 or 12, pectoral fin with 15 or 16, pelvic fin with 9, anal fin with 22 or 23, and caudal fin with 19 rays. Ground color silvery; one black humeral blotch, transversely elongated, followed by another similar black humeral blotch, smaller than the first; silvery longitudinal band on flank (brown or grey in fixed specimens), from humeral blotch to median caudal-fin rays, larger on caudal peduncle, forming ovalshaped, horizontally elongated, blotch. Yellowish or reddish fins ( Graça, Pavanelli, 2007).

Maximum standard length. 74.2 mm ( Graça, Pavanelli, 2007).

Distribution. Upper rio Paraná basin.

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.