As recognized here, the genus conta

As recognized here, the genus contains at least 8 species: P. fasciatum restricted to the Guyana region; P.
punctifer (formerly recognized as P. fasciatum from the Amazon River); P. orinocoense, n. sp., (formerly P.
fasciatum from the Orinoco basin); P. magdaleniatum, n. sp., (formerly P. fasciatum from the Magdalena
River); P. reticulatum (formerly P. fasciatum from the Amazon and Paraná rivers); P. corruscans (from the
Paraná and São Francisco rivers), P. tigrinum, restricted to the Amazon basin, and P. metaense, n. sp. (formerly
P. tigrinum from the Orinoco River).
Additionally, we recognize two clades of Pseudoplatystoma (see Buitrago–Suárez, 2005), both supported
by anatomical characters. In the P. fasciatum clade (P. fasciatum, P. punctifer, P. orinocoense, P. magdaleniatum,
P. reticulatum, and P. corruscans) the anterior fontanel is almost entirely surrounded by the mesethmoid
and frontals. The fontanel is surrounded by the mesethmoid, frontal, and supraoccipital in the P. tigrinum
clade (P. metaense and P. tigrinum only) (Figs. 7 and 8). A tooth patch covers the dorsal surface of ceratobranchial
5 and extends beyond 1/3 of the ventral region in the P. fasciatum clade. The tooth patch on ceratobranchial
5 covers only the dorsal surface in the P. tigrinum clade (Fig. 9). In the P. tigrinum clade, the lateral
ethmoid bears a small process anteriorly (Fig. 8). The process develops from a ventral elevation that serves as
the site for a connection of a bundle of ligaments coming from the entopterygoid. The P. fasciatum clade
lacks this process.
The presence of a median crest in the posterior process of the supraoccipital is uncommon in pimelodines.
This feature does not distinguish unambiguously between the two clades, but is present in P. tigrinum, P.
metaense and P. magdaleniatum (Fig. 7).