Peces Criollos - Freshwater Fishes of Argentina Peces Criollos - Freshwater Fishes of Argentina
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Crenicichla tapii sp.nov. from Argentina

Crenicichla tapii - female
Crenichichla tapii, female (photo from publication)

new species from Argentina:
Crenicichla tapii Piálek, Dragová, Casciotta, Almirón & Říčan, 2015

published in:
Piálek, L., K. Dragová, J. Casciotta, A. Almirón & O. Říčan (2015):
Description of two new species of Crenicichla (Teleostei: Cichlidae) from the lower iguazú river with a taxonomic reappraisal of C. iguassuensis, C. tesay and C. yaha.
Historia Natural 5 (2): 5-27

abstract (from publication):
Five species of Crenicichla have been recorded so far from the lower Iguazú River. Four of them are endemic (members of the C. mandelburgeri species complex from the C. lacustris group) and living in sympatry; the fifth species (C. lepidota) belongs to an Amazon/Orinoco-centered species group (C. saxatilis) and is only distantly related to the remaining species. The four sympatric species differ substantially in their head/teeth morphology and related utilization of the ecological niches, and represent all known ecomorphs within Crenicichla. Two of them, a gregarious small-mouthed picker/grazer C. tapii sp. n. and a large-mouthed thick-lipped cavity explorer/excavator C. tuca sp. n. are described here as new species.
The piscivorous large-mouthed species C. iguassuensis represents the ancestral form of the genus. The fourth species is the small-mouthed picker/molluscivore C. tesay with a robust lower pharyngeal jaw with molariform teeth. Populations referred to in previous studies as C. yaha are reclassified as C. tesay; C. yaha is an endemic species of the neighboring Urugua-í stream known only from nine specimens because the species has not been collected since 1989 (when a dam was constructed on this stream). The taxonomic status of the populations referred to here as C. iguassuensis remain tentative because these form a separate clade in mtDNA analysis, reveal slight morphological differences, and have a wide distribution gap to the type locality with similar yet undescribed species in the intervening area.

Farlowella azpelicuetae sp.nov. from Argentina

Jenynsia sulfurica sp.nov. from Argentina

Zungaro jahu - Paulicea gigantea is a jr. synonym

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

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