Hypostomus cordovae revalidated from synonymy with H. paranensis

Hypostomus boulengeri – first record from Argentina

Hypostomus aspilogaster – first record from Argentina

Hypostomus arecuta sp.nov. from Argentina

Moenkhausia sanctaefilomenae – not a species from Argentina

Mimagoniates inequalis – first record from Argentina

Jenynsia obscura is a senior synonym of J. pygogramma

Hypophthalmichthys nobilis – a new exotic from Argentina

Hypobrycon maromba – first record from Argentina

Hyphessobrycon togoi sp.nov. from Buenos Aires, Argentina