SteindachneriaEigenmann & Eigenmann, 1888 Steindachneridion is a genus of South American pimelodid catfish (order Siluriformes).

[1] The currently recognized species in this genus are:[3] Steindachneridion species originate from South America and are restricted to eastern Brazilian coastal drainages, plus the upper Paraná and Uruguay River basins.

[1] Steindachneridion species are large fish, reaching 100 cm (40 in) in total length or more.

[1] S. amblyurum differs from other members of this species by having a rounded caudal fin instead of notched.

[1] Steindachneridion species suffer intense anthropogenic pressure, through modification to their habitat and due to overfishing; consequently, some of them are highly endangered and practically extinct in various parts of their original areas of distribution.

Of the six recognized species, all but S. punctatum are considered threatened by Brazil's Ministry of the Environment.

[10] Due to their economic importance as a food source, some aquaculture stations are currently developing programs for captive propagation of Steindachneridion species.