An updated list of the ichthyofauna of Ipanema National Forest, São Paulo, Brazil Smith, Welber Senteio Halcsik, Leticia Biagioni, Renata Cassemiro Pinheiro, Lúcio Antônio Stefani Severino Stefani, Marta Check List 2021 2021-05-31 17 3 827 840 YPWQ Ihering, 1911 Ihering 1911 [810,1190,1855,1879] Actinopterygii Callichthyidae Corydoras Animalia Siluriformes 9 836 Chordata species flaveolus   Material examined.  BRAZIL–  São Paulo• Iperó, Ipanema River; 23°22.40′S, 049°38.51′W;  560 malt;  10.II.2012, W.S. Smithand L. Halcsikleg.; hand nets; MZUSP 115227( 4 spec., 35.0−65.0 mm SL).  Identification.Body deep and elliptical; mouth inferior; 22 plates along the body; dorsal fin with 8 rays, pectoral fin with 10 or 12 rays, pelvic fin with 7, anal fin with 5–8 and caudal fin with 20 rays. Beige body color; absence of a humeral spot, brown spots and spots along the body ( Thereza 2018). 2012-02-10 MZUSP W. S. Smith & L. Halcsik Brazil 560 -23.373333 Ipanema River 12 -49.641834 Ipero 9 836 MZUSP 115227 4 Sao Paulo