Pseudoplatystoma reticulatum Eigenmann, Eigenmann, 1889,

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: 85

publication ID 10.1590/1982-0224-20170094


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Pseudoplatystoma reticulatum Eigenmann, Eigenmann, 1889


Pseudoplatystoma reticulatum Eigenmann, Eigenmann, 1889 

Fig. 30View Fig

Body deep; greatest depth contained 5.5 to 6.0 times in SL; head length 2.6 to 2.7, anal-fin base length 8.0 to 8.9, adiposefin base length 11.0 to 13.0, maxillary-barbel length 2.2 to 2.5 in SL; snout length 2.0 to 2.3, horizontal orbital diameter 10.0 to 10.8, least interorbital width 4.0 to 4.9 in HL; orbital diameter 2.4 to 2.5 in interorbital width. Mouth subterminal; dentigerous tooth plates in both premaxilla and dentary. Dorsal fin with 7, pectoral fin with I,8 or 9, pelvic fin with 7 and anal fin with 14-17 rays. Ground color dark-grey above lateral line, whitish below; dark-brown loop-like transverse bars from posterior opercular flap to caudal peduncle. Dorsal and anal fins with black spots; pectoral and pelvic fins dark-grey dorsally, pale ventrally, with few black spots ( Graça, Pavanelli, 2007).

Maximum standard length. 800.0 mm.

Distribution. Central Amazon and rio Paraná basins.

Remarks. Pseudoplatystoma reticulatum  was identified as P. fasciatum  by Graça, Pavanelli (2007). Buitrago-Suárez, Burr (2007), in a taxonomic study of Pseudoplatystoma Bleeker, 1862  , restricted the distribution of P. fasciatum  to the Guyana region and proposed the new identification for the specimens from the rio Paraná basin. Pseudoplatystoma reticulatum  is a non-native species from the upper rio Paraná, and its occurrence can be associated with the functioning of the Canal da Piracema, a fish ladder that connects the region downstream from the Itaipu Dam to the region upstream from the dam.