An updated list of the ichthyofauna of Ipanema National Forest, São Paulo, Brazil Author Smith, Welber Senteio Author Halcsik, Leticia Author Biagioni, Renata Cassemiro Author Pinheiro, Lúcio Antônio Stefani Author Severino Stefani, Marta text Check List 2021 2021-05-31 17 3 827 840 http://dx.doi.org/10.15560/17.3.827 journal article 10.15560/17.3.827 1809-127X Astyanax lacustris (Lütken, 1875) Figure 2B Material examined. BRAZIL – São Paulo • Iperó , Hedberg Dam ; 23°25.46′S , 047°35.54′W ; 550 m alt.; 12. II.2012 ; W.S. Smith and L. Halcsik leg.; cast nets; LEEF 15132 , 115147 , LEEF 115156 , LEEF 1115167 ( 18 spec. , 90.0− 130.5 mm SL) . Identification. Body deep and high; mouth terminal; inner row of premaxilla with 5 teeth, outer row with 4 or 5, dentary with 8–16, no maxillary teeth. Lateral line com- plete, with 34–36 scales; transversal series above lateral line with 7–7½ scale rows and below with 6–6½ scale rows. Dorsal fin with 10 rays, pectoral fin with 12 or 13 rays, pelvic fin with 9 rays, anal fin with 25–27 rays, and caudal fin with 19 rays. Ground color silvery; one black rounded humeral blotch followed by another vertically elongated humeral blotch to median caudal-fin rays. Yel- lowish fins ( Graça and Pavanelli 2007 ; Ota et al. 2018 ).