first record from Argentina:
Megaleporinus piavussu (Britski, Birindelli & Garavello, 2012)

published in:
Benitez, M.F. & D.R. Aichino (2020):
First record of Megaleporinus piavussu (Characiformes: Anostomidae) from Argentina.
Ichthyological Contributions of PecesCriollos 64: 1-4

abstract (from publication):
Megaleporinus obtusidens and M. macrocephalus were known to be the only representatives of the genus in Argentina and the former was also the only species recorded from the ParanĂ¡ river in the country. Recent collection campaigns at ParanĂ¡ River in Argentina [Corrientes] allowed us to identify for the first time the presence of Megaleporinus piavussu.