Rhaphiodon vulpinus Spix, Agassiz, 1829

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 : 45

Rhaphiodon vulpinus Spix, Agassiz, 1829

Fig. 12

Body deep; greatest depth contained 5.2 to 6.1 and caudal peduncle depth 16.1 to 17.3 times in SL; head length 4.8 to 5.3, predorsal distance 1.3 to 1.4 and caudal peduncle length 11.9 to 14.0 in SL; snout length 3.5 to 3.7, horizontal orbital diameter 4.6 to 4.7 and least interorbital width 6.1 to 6.2 in HL. Mouth superior, its cleft oblique; premaxilla with 14-16, dentary with 21-23 and maxilla with 15-17 teeth. Lateral line with 142-145 pored scales; transverse series above lateral line with 16-21 scale rows and below with 13-16 scale rows. Dorsal fin with 14, pectoral fin with 17 or 18, pelvic fin with 9, anal fin with 40-45, and caudal fin with 19 rays ( Toledo-Piza, 2000). Ground color silvery. Pectoral, pelvic and anal fins yellowish; dorsal and caudal fins hyaline ( Graça, Pavanelli, 2007).

Maximum standard length. 780.0 mm ( Graça, Pavanelli, 2007).

Distribution. Río Orinoco, drainages of Guyana, Amazon and río de la Plata basins.

Figures

Fig. 12. a. Characidium gomesi, NUP 17607, 59.3 mm SL, córrego São Lucas, tributary of the rio Amambaí, Juti, State of Mato Grosso do Sul. b. Characidium aff. zebra, 56.0 mm SL, uncat. c. Characidium sp., NUP 3450, 27.4 mm SL, lagoa da Esperança, Nova Alvorada do Sul, State of Mato Grosso do Sul. d. Cyphocharax modestus, NUP 3290, 80.0 mm SL, lagoa do Bilunga, Taquarussu, State of Mato Grosso do Sul. e. Cyphocharax nagelii, 130.0 mm SL, uncat. f. Steindachnerina brevipinna, 105.8 mm SL, fresh specimen, uncat. g. Steindachnerina insculpta, NUP 1424, 90.0 mm SL, Itaipu Reservoir, Guaíra, State of Paraná. h. Rhaphiodon vulpinus, 480.0 mm SL, fresh specimen, uncat.