Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated
Author
Ota, Renata Rúbia
Author
Deprá, Gabriel de Carvalho
Author
Graça, Weferson Júnio da
Author
Pavanelli, Carla Simone
text
Neotropical Ichthyology
2018
2018-06-11
16
2
1
111
journal article
10.1590/1982-0224-20170094
f68fe85c-2a4c-4625-b684-74f61398d6c2
1982-0224
3678395
Pimelodella gracilis
(Valenciennes, 1835)
Fig. 22
Body elongated; greatest body depth contained 5.1 to 5.9, head depth 4.2 to 4.9 and caudal peduncle depth 7.2 to 7.9 times in SL; head length 4.3 to 5.0, anal-fin base length 6.4 to 7.8, adipose-fin base length 2.3 to 2.5 and maxillarybarbel length 1.2 to 1.5 times in SL; snout length 2.3 to 2.5, horizontal orbital diameter 3.0 to 3.3 and least interorbital width 3.7 to 5.0 times in HL. Mouth terminal; premaxilla and dentary with several diminute and viliform teeth. Dorsal fin with I,6, pectoral fin with I,9 or 10, pelvic fin with 6 and anal fin with 12-14 rays. Ground color beige; dark-brown longitudinal band along lateral line. Hyaline fins (
Graça, Pavanelli, 2007
).
Maximum standard length.
184.0 mm (
Graça, Pavanelli, 2007
).
Distribution.
Río de la Plata, Amazon and río Orinoco basins.