Roeboides descalvadensis is a sr. synonym of R. paranensis

Roeboides affinis is a sr. synonym of R. prognathus

Rineloricaria zaina – first record from Argentina

Rineloricaria stellata – first record from Argentina

Rineloricaria steinbachi comb.nov. from Ixinandria

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