Knodus moenkhausii

Knodus moenkhausii (Eigenmann, Kennedy, 1903) Fig. 11 Body elongate; greatest body depth contained 3.5 to 4.0, caudal peduncle depth 9.7 to 12.4 times in SL; head length 3.9 to 4.5, predorsal distance 1.8 to 2.0, and caudal peduncle length 6.8 to 7.4 in SL; snout length 3.5 to 3.9, horizontal orbital diameter 1.8 to 2.3, and least interorbital width 2.5 to 3.2 times in HL. Mouth terminal; inner row of premaxilla with 4, outer row with 4-5, dentary with 8-9 and maxilla with 2-3 teeth. Lateral line with 35-39 scales; transverse series above lateral line with 4½-5½ scales above and below with 3-4½ scale rows. Dorsal fin with 10, pectoral fin with 14-15, pelvic fin with 8-9, anal with 22-24, and caudal fin with 19 rays. Ground color silvery to pale yellow; silvery longitudinal band (dark-brown in preserved specimens), from humeral spot to median caudal-fin rays; dark-brown, transversely elongate, humeral spot. Yellowish fins; reddish during reproductive period (Graça, Pavanelli, 2007). Maximum standard length. 54.0 mm (Graça, Pavanelli, 2007). Distribution. Paraná-Paraguay system, rio São Francisco and coastal drainages of Southeastern Brazil.Published as part of Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da & Pavanelli, Carla Simone, 2018, Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated, pp. 1-111 in Neotropical Ichthyology 16 (2) on page 41, DOI: 10.1590/1982-0224-20170094, http://zenodo.org/record/367839