Imparfinis guttatus – first record from Argentina

Acrobrycon tarijae – revalidated from synonymy

Xiphophorus hellerii – first record from Argentina

Diapoma potamohadros – new species from Argentina

Doras punctatus – comb.nov. from Ossancora

Trichomycterus rivulatus – first record from Argentina

Gymnotus omarorum – first record from Argentina

Trichomycterus stawiarski – first record from Argentina

Trichomycterus pseudosilvinichthys sp.nov. from La Rioja

Trichomycterus minus sp.nov. from Catamarca