A new species of Diapoma (Characiformes, Characidae, Stevardiinae) from the Rio Paraná basin, with an identification key to the species of the genus

Diapoma nandi is described from the Piray‐Miní stream, a tributary of the Rio Paraná in Argentina. It is characterized among the Stevardiinae by having a terminal mouth, two unbranched and eight branched dorsal‐fin rays, one unbranched and six branched pelvic‐fin rays and the absence of a caudal‐fin...

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