first record from Argentina:
Cetopsorhamdia iheringi Schubart & Gomes, 1959

published in:
Benitez, M., G.E. Terán, F. Alonso, G. Aguilera & J.M. Mirande (2017):
Cetopsorhamdia iheringi (Siluriformes, Heptapteridae): a new record for the freshwater ichthyofauna of Argentina.
Revista del Museo Argentino de Ciencias Naturales, n.s. 19 (2): 113-119

abstract (from publication):
Cetopsorhamdia is a genus of Neotropical catfishes with a broad distribution in the main drainages of South America. Herein we report the first record of Cetopsorhamdia iheringi in Argentina and comment on the type series of the species.