Peces Criollos - Freshwater Fishes of Argentina Peces Criollos - Freshwater Fishes of Argentina
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Diapoma nandi sp.nov. from Argentina

Diapoma nandi
Diapoma nandi
, male holotype and female paratype (below) (photo from publication)

new species from Argentina:
Diapoma nandi Vanegas-Ríos, Azpelicueta & Malabarba, 2018

published in:
Vanegas-Ríos, J.A., M. Azpelicueta & L.R. Malabarba (2018):
A new species of Diapoma (Characiformes, Characidae, Stevardiinae) from the Rio Paraná basin, with an identification key to the species of the genus.
Journal of Fish Biology 93 (5): 830-841

abstract (from publication):
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 organ and is distinguished from all congeners by the following combination of characters: unmodified scales on the lower caudal-fin lobe, lack of enlarged opercle and subopercle, incomplete lateral line, hyaline adipose fin, anal-fin distal border straight or slightly convex in adult males, large tricuspid teeth on anterior region of the dentary, distal arrangements of the anal-fin bony hooks in adult males, middle caudal-fin rays lacking large round blotch and several morphometric variables associated with body shape. Additionally, we conducted a morphometric comparison focused on the congeners that co-occur in the Paraná basin.

Farlowella azpelicuetae sp.nov. from Argentina

Jenynsia sulfurica sp.nov. from Argentina

CLOFFAR - update 6

Steindachnerina nigrotaenia - resurrected from synonymy of S. brevipinna

Steindachnerina insculpta - not a species from Argentina

Hypostomus cordovae revalidated from synonymy with H. paranensis

Hypostomus spiniger revalidated from synonymy with H. commersoni

Moenkhausia bonita - first record from Argentina

Moenkhausia intermedia - not a species from Argentina

Hisonotus pantherinus - comb.nov. from Eurycheilichthys

Pyxiloricaria menezesi - not a species from Argentina

Gymnogeophagus jaryi sp.nov. from Argentina

Corydoras undulatus - first record from Paraguay

Austrolebias cinereus is a sr. synonym of A. vazferreirai

Gymnogeophagus peliochelynion sp.nov. from Uruguay

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