Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated Author Ota, Renata Rúbia Author Deprá, Gabriel de Carvalho Author Graça, Weferson Júnio da Author Pavanelli, Carla Simone text Neotropical Ichthyology 2018 2018-06-11 16 2 1 111 journal article 10.1590/1982-0224-20170094 f68fe85c-2a4c-4625-b684-74f61398d6c2 1982-0224 3678395 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.