Farlowella azpelicuetae sp.nov. from Northwest Argentina

Epactionotus yasi sp.nov. from Misiones, Argentina

Ectrepopterus uruguayensis – first record from Argentina

Diapoma pyrrhopteryx – first record from Argentina

Diapoma nandi sp.nov. from Misiones, Argentina

Diapoma guarani comb.nov. from Hyphessobrycon

Cyanocharax uruguayensis comb.nov. is a sr. synonym of C. macropinna

Cyanocharax obi sp.nov. from Misiones, Argentina

Cyanocharax macropinna sp.nov. from Misiones, Argentina

Cyanocharax lepiclastus sp.nov. from Misiones, Argentina