Oligosarcus paranensis Menezes, Géry, 1983

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, Neotropical Ichthyology 16 (2), pp. 1-111 : 33

Oligosarcus paranensis Menezes, Géry, 1983

Fig. 9

Body elongate; greatest depth contained 2.9 to 3.7 and caudal peduncle depth 7.8 to 8.6 times in SL; head length 2.9 to 3.5, predorsal distance 1.7 to 1.9 and caudal peduncle length 8.7 to 9.4 in SL; snout length 3.5 to 4.5, horizontal orbital diameter 2.6 to 4.3 and least interorbital width 3.8 to 5.6 in HL. Mouth terminal; premaxilla with 4-7 teeth, dentary with 11-21, and maxilla with 18-35 teeth. Lateral line complete, with 47-54 pored scales; transverse series above lateral line with 9-10 scale rows and below with 6-8 scale rows. Dorsal fin with 12, pectoral fin with 12-16, pelvic fin with 8-9, anal fin with 20-27, and caudal fin with 19 rays ( Menezes, Géry, 1983). Ground color silvery; black humeral spot, vertically elongate; silvery longitudinal stripe on flank (brown or grey in preserved specimens), from humeral spot to median caudal-fin rays. Yellowish fins ( Graça, Pavanelli, 2007).

Maximum standard length. 100 mm ( Graça, Pavanelli, 2007).

Distribution. Upper rio Paraná basin.

Figures

Fig. 9. a. Oligosarcus paranensis, NUP 303, 82.0 mm SL, Fiú Reservoir (rio Apucaraninha), Tamarana, State of Paraná. b. Oligosarcus pintoi, NUP 1772, 68.4 mm SL, rio Piquiri, Mariluz, State of Paraná. c. Psellogrammus kennedyi, 30.5 mm SL, fresh specimen, uncat. d. Aphyocharax anisitsi, 38.6 mm SL, fresh specimen, uncat. e. Aphyocharax dentatus, 48.0 mm SL, fresh specimen, uncat. f. Aphyocharax sp., NUP 3225, 33.4 mm SL, lagoa do Bilunga, Taquarussu, State of Mato Grosso do Sul. g. Galeocharax gulo, NUP 263, 200.0 mm SL, rio Paraná, Porto Rico, State of Paraná. h. Roeboides descalvadensis, NUP 3286, 88.8 mm SL, lagoa do Bilunga, Taquarussu, State of Mato Grosso do Sul.