Tetragonopterus signatus - an overlooked taxon from Argentina

an overlooked taxon from Argentina:
Tetragonopterus signatus Burmeister, 1861

type locality:
Argentina, province of Santa Fé, city of Rosario, Río Paraná

published in:
Koerber, S. & T. Litz ( 2008):
On some overlooked taxa of freshwater fishes described from Argentina by Hermann Burmeister in 1861.
Ichthyological Contributions of PecesCriollos 7: 1-15