Leporinus lacustris Campos, 1945

Fig. 4

Body deep; greatest depth contained 2.8 to 3.4 and caudal peduncle depth 6.4 to 8.0 times in SL; head length 3.2 to 3.8, predorsal distance 1.9 to 2.1, caudal peduncle length 13.3 to 13.5 in SL; snout length 1.3 to 2.5, horizontal orbital diameter 3.4 to 4.5 and least interorbital width 1.7 to 2.0. Mouth terminal; premaxilla and dentary with 4 teeth, no maxillary teeth. Lateral line with 32-36 pored scales; transverse series above and below lateral line with 4 or 4½ scale rows. Dorsal fin with 12, pectoral fin with 14-16, pelvic fin with 8 or 9, anal fin with 10 and caudal fin with 19 rays (Campos, 1945; Garavello, 1979). Ground color greyish to pale yellow; three grey to black rounded blotches along lateral line, first and most conspicuous below dorsal fin. Yellowish fins (Graça, Pavanelli, 2007).

Maximum standard length. 230.0 mm (Graça, Pavanelli, 2007).

Distribution. Paraná-Paraguay system.