Astyanax lacustris ( Lütken, 1875 )

Batista-Silva, Valéria Flávia, Frota, Augusto, Kashiwaqui, Elaine Antoniassi Luiz, Abelha, Milza Celi Fedatto, Bailly, Dayani, Gubiani, Éder André & Júnio da Graça, Weferson, 2018, Ichthyofauna from three streams of the lower Iguatemi River in the upper Paraná river basin, Brazil, Check List 14 (2), pp. 363-378 : 369

Astyanax lacustris ( Lütken, 1875)

Tetragonopterus lacustris Lütken 1875: 131 [original description].

Astyanax scabripinnis — Castro et al. 2004: 32, fig. 4a, 4.

Astyanax altiparanae — Graça and Pavanelli 2007: 54, 55; Hoffmann et al. 2015: 4, fig. A1.E.

Astyanax lacustris — Lucena and Soares 2016: 103 , figs. 1, 6, 8, 9; Bifi et al. 2017: 4, 5, fig. 2.6.

Material examined. Table 2; Figure 5E.

Deep body; terminal mouth; inner row of premaxilla with 5 teeth, outer with 4 or 5, dentary with 8–16, and no maxillary teeth. Lateral line complete, with 33–41 pored scales; transversal series above lateral line with 6–8 scale rows and below with 4–8 scale rows. Dorsal fin with 12, pectoral fin with 12 or 13, pelvic fin with 8 or 9, anal fin with 22–34, and caudal fin with 19, total rays ( Garutti and Britski 2000). Ground color silvery; 1 black rounded humeral blotch followed by another vertically elongated humeral blotch, silvery longitudinal band on the flank (dark in fixed specimens) from humeral blotch to median caudal-fin rays, being larger on caudal peduncle and forming oval-shaped, horizontally elongated blotch. Yellowish fins.