Cyphocharax modestus (Fernández-Yépez, 1948)

Fig. 12

Body deep; greatest body depth contained 2.4 to 2.9 and caudal peduncle depth 6.6 to 7.7 times in SL; head length 3.2 to 3.7, predorsal distance 1.9 to 2.1 and caudal peduncle length 10.7 to 10.9 in SL; snout length 3.0 to 3.7, horizontal orbital diameter 3.1 to 3.8 and least interorbital width 2.2 to 2.5 in HL. Mouth terminal; premaxilla, dentary and maxilla without teeth in adults. Lateral line with 31- 36 pored scales; transverse series above lateral line with 5½-7 scale rows and below with 4½-6 scale rows. Dorsal fin with 11 or 12, pectoral fin with 14-16, pelvic fin with 9 or 10, anal fin with 8 or 9 and caudal fin with 19 rays (Vari, 1992). Ground color silvery; dark-brown inconspicuous longitudinal band along lateral line to distal margin of median caudal-fin rays, larger on caudal peduncle. Hyaline fins (Graça, Pavanelli, 2007).

Maximum standard length. 132.0 mm (Graça, Pavanelli, 2007).

Distribution. Paraná-Paraguay system.