Hemisorubim platyrhynchos (Valenciennes, 1840)

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 : 81

Hemisorubim platyrhynchos (Valenciennes, 1840)

Fig. 28

Body elongated; greatest depth contained 6.5 to 7.6, head depth 10.6 to 10.9, caudal-peduncle depth 14.7 to 15.8 times in SL; head length 2.9 to 3.4, anal-fin base length 12.1 to 12.3, adipose-fin base length 7.0 to 7.9, maxillary-barbel length 1.8 to 2.0 in SL; snout length 2.0 to 2.6, horizontal orbital diameter 5.5 to 5.8 and least interorbital width 4.8 to 5.4 in HL. Mouth prognathous, dentary slightly prognathous; dentigerous tooth plates present in both premaxilla and dentary. Dorsal fin with 7, pectoral fin with 11-16, pelvic fin with 7 and anal fin with 10-14 rays. Ground color yellowish-green; one or two black rounded blotch on flank; sometimes one black spot on superior portion of caudal peduncle. Yellowish fins, with or without dark-grey diffuse blotches ( Graça, Pavanelli, 2007).

Maximum standard length. 495.0 mm ( Graça, Pavanelli, 2007).

Distribution. Amazon and río Orinoco basins and Paraná- Paraguay system.

Figures

Fig. 28. a. Hemisorubim platyrhynchos, 470.0 mm SL, fresh specimen, uncat. b. Hypophthalmus oremaculatus, 405.0 mm SL, fresh specimen, uncat. c. Iheringichthys labrosus, 200.0 mm SL, uncat. d. Megalonema platanum, 340.0 mm SL, fresh specimen, uncat.