Platystoma sturioKner, 1857 Platystomatichthys Sturio is the only species in the genus Platystomatichthys of the catfish (order Siluriformes) family Pimelodidae.

[2] This species occurs in the Amazon Basin and reaches a length of about 40.0 centimetres (15.7 in) TL.

[3] Platystomatichthys is classified under the "Calophysus-Pimelodus clade".

Within this clade, it is considered a part of the "Pimelodus-group" of Pimelodids, which also includes Pimelodus, Exallodontus, Duopalatinus, Cheirocerus, Iheringichthys, Bergiaria, Bagropsis, Parapimelodus, Platysilurus, and Propimelodus.

This Pimelodidae-related article is a stub.