Rhamdia quelen (Quoy, Gaimard, 1824)

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 : 70

Rhamdia quelen (Quoy, Gaimard, 1824)

Fig. 22

Body elongated; greatest body depth contained 4.7 to 5.7, head depth 6.7 to 9.0 and caudal peduncle depth 5.6 to 8.4 times in SL; head length 4.1 to 4.2, anal-fin base length 7.8 to 8.8, adipose-fin base length 2.3 to 2.7 and maxillary-barbel length 2.1 to 2.7 times in SL; snout length 3.0 to 3.1, horizontal orbital diameter 5.6 to 6.1 and least interorbital width 3.0 to 3.1 times in HL. Mouth terminal; premaxilla and dentary with several diminute and viliform teeth. Dorsal fin with 7, pectoral fin with 8-10, pelvic fin with 6 and anal fin with 14-15 rays. Ground color beige to brown; some specimens can present scattered dark-brown chromatophores on body. Dark-grey or brown fins ( Graça, Pavanelli, 2007).

Maximum standard length. 410.0 mm ( Graça, Pavanelli, 2007).

Distribution. Widespread in South America rivers.

Figures

Fig. 22. a. Pimelodella avanhandavae, 125.0 mm SL, uncat. b. Pimelodella gracilis, NUP 3118, 120.0 mm SL, Itaipu Reservoir, Foz do Iguaçu, State of Paraná. c. Pimelodella taenioptera, NUP 3991, 130.0 mm SL, Itaipu Reservoir, Santa Teresinha de Itaipu, State of Paraná. d. Rhamdia quelen, 163.2 mm SL, fresh specimen, uncat. e. Ictalurus punctatus, NUP 11203, 180.5 mm SL, rio São Francisco Verdadeiro, tributary of the rio Paraná, Entre Rios do Oeste, State of Paraná.