Rineloricaria reisi – first record from Argentina

Rineloricaria misionera sp.nov. from Misiones, Argentina

Rineloricaria isaaci sp.nov from the Uruguay river

Rhamdia voulezi – first record from Argentina

Rhamdia branneri – first record from Argentina

Rhamdella longiuscula – first records from Argentina

Rhamdella cainguae sp.nov. from Misiones, Argentina

Pyxiloricaria menezesi – not a species from Argentina

Pyrrhulina brevis and P. melanostoma are not from Argentina

Pyrrhulina australis is a sr. synonym of P. macrolepis and P. rachoviana