Microglanis nigrolineatus sp.nov. from Salta, Argentina

Microglanis cottoides – not a species from Argentina

Microglanis carlae – first records from Argentina

Melanorivulus punctatus comb.nov. from Rivulus

Megaleporinus piavussu – first record from Argentina

Megaleporinus macrocephalus comb.nov. from Leporinus

Loricaria luciae sp.nov. from Corrientes, Argentina

Loricaria holmbergi sp.nov. from Jujuy, Argentina

Leporinus amae – first record from Argentina

Jenynsia tucumana sp.nov. from Tucumán and Salta