Gymnotus inaequilabiatus – confirmed for Argentina

Gymnotus carapo – confirmed for Argentina by G. c. australis ssp.nov. from Misiones

Gymnorhamphichthys hypostomus – not a species from Argentina

Gymnorhamphichthys britskii – first record from Argentina

Gymnogeophagus taroba sp.nov. from Misiones, Argentina

Gymnogeophagus setequedas – first record from Argentina

Gymnogeophagus lipokarenos – first record from Argentina

Gymnogeophagus jaryi sp.nov. from Misiones, Argentina

Gymnogeophagus gymnogenys – not a species from Argentina

Gymnogeophagus constellatus – first record from Argentina