Geophagus brasiliensis – first record from Argentina

Gambusia holbrooki – first record from Argentina

Galeocharax knerii – not a species from Argentina

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