Brycon hilarii – confirmed for Argentina

Brachyhypopomus gauderio – first records from Argentina

Brachyhypopomus draco – first records from Argentina

Brachyhypopomus brevirostris – not a species from Argentina

Brachyhypopomus bombilla – first records from Argentina

Bagrus tucumanus – an overlooked taxon from Argentina

Austrolebias wichi sp.nov. from Chaco, Argentina

Austrolebias toba sp.nov. from Chaco, Argentina

Austrolebias robustus revalidated from synonymy with A. bellottii/elongatus

Austrolebias patriciae – first record from Argentina