Engraulisoma taeniatum – first record from Uruguay

Xyliphius barbatus – not a species from Uruguay

Osteogaster aenea – comb.nov. from Corydoras

Gastrodermus undulatus – comb.nov. from Corydoras

Gastrodermus hastatus – comb.nov. from Corydoras

Hoplisoma longipinne – comb.nov. from Corydoras

Hoplisoma paleatum – comb.nov. from Corydoras

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

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

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