Peces Criollos - Freshwater Fishes of Argentina Peces Criollos - Freshwater Fishes of Argentina
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Silvinichthys pachonensis sp.nov. from Argentina

Silvinichthys pachonensis - holotype
Silvinichthys pachonensis, holotype (photo from publication)

new species from Argentina:
Silvinichthys pachonensis Fernández & Liotta, 2016

published in:
Fernández, L. & J. Liotta (2016):
Silvinichthys pachonensis, a new catfish from high altitude, with a key to the species of the genus (Siluriformes: Trichomycteridae).
Ichthyological Exploration of Freshwaters 27 (4): 375-383

abstract (from publication):
Silvinichthys pachonensis, new species, is described from 3103 m asl in the Andean cordillera of San Juan, Argentina, and constitutes the first record of the genus in high altitude. It shares the diagnostic characters of Silvinichthys, but is distinguished from the five named species mainly by the mesethmoid shaft larger than the side of the cornua (vs. shaft smaller than lateral cornua) and the relatively high number (14) of precaudal vertebrae (vs. 8-10 precaudal vertebrae). Additionally, it differs by the combination of the absence of the pelvic fin and girdle, strong abductor musculature, and various osteological, meristic, and morphometric features. Silvinichthys pachonensis is presently known only from the type locality, in an arid region of western central Argentina.

CLOFFUY - update 3

Oligosarcus hepsetus - not a species from Argentina or Uruguay

Moenkhausia forestii - first record from Argentina

Moenkhausia sanctaefilomenae - not a species from Argentina

Moenkhausia australis - confirmed for Argentina

Andromakhe gen.nov. - 5 comb.nov from Astyanax

Psalidodon - 30 comb.nov. from Astyanax

Psalidodon anisitsi comb.nov. from Hyphessobrycon

Deuterodon luetkenii comb.nov. from Hyphessobrycon

Deuterodon taeniatus comb.nov. from Astyanax

Hypostomus roseopunctatus - first record from Argentina

Megaleporinus piavussu - first record from Argentina

Corydoras longipinnis - first record from Uruguay

Hoplias argentinensis - first record from Uruguay

Odontesthes argentinensis - first record from freshwaters in Argentina

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