Hoplias guri – new species from Argentina

Ernstichthys casalinuovoi – new species from Argentina

Hemiodus orthonops – first record from Uruguay

Cynopotamus kincaidi – first record from Uruguay

Brycon hilarii – first record from Uruguay

Cnesterodon raddai – first record from Uruguay

Titanolebias calvinoi – sp.nov. from Argentina

Huso spp. – comb.nov. from Acipenser

Phalloceros mimbi – sp.nov. from Argentina and Uruguay

Brevidens striatus – comb.nov. from Leporinus