Amatolebias gen.nov. – with comb.nov. from Austrolebias

Acantholebias stat.nov. – with comb.nov. from Austrolebias

Crenicichla aravera – new species from Argentina

Crenicichla ama – new species from Argentina

Saxatilia lepidota – comb.nov. from Crenicichla

Hypostomus isbrueckeri – first record from Argentina

Microglanis malabarbai – first record from Argentina

Imparfinis guttatus – first record from Argentina

Acrobrycon tarijae – revalidated from synonymy

Austrolebias univentripinnis – first record from Uruguay