Speciation rates vary greatly among taxa and regions and are shaped by both biotic and
abiotic factors. However, the relative importance and interactions of these factors are not …

The catfish subfamily Trichomycterinae is widely distributed in South America inhabiting
several habitats, but specially mountain streams. Trichomycterus is the most speciose …

The aim of the present contribution is to review the taxonomy of the loricariid Sturisoma in
the La Plata basin. The original description of the species S. barbatum is analyzed and …

Specimens of Imparfinis were recently collected in north‐western Argentina from the
Bermejo River basin (Salta and Jujuy Provinces), del Valle River (Salta Province) and …

Geographically, widespread Neotropical fish lineages offer opportunities to reconstruct
historical biogeography patterns and infer processes leading to modern ichthyological …

Abstract Hypostomus LacÚpŔde, 1803, is a species‐rich and widespread fish genus from
the Neotropical region, but its evolutionary history and systematics remain largely unclear. In …

Introduction Megaleporinus obtusidens, also known as" boga," is a freshwater teleost fish
species widely distributed across South America with significant commercial value in …

In the present study, we used DNA sequences from three mitochondrial (COI, Cytb, and nd2)
and one nuclear (RAG2) marker, to perform species delimitation analyses (ABGD, GMYC …

 Abstract We conducted a revision of the Neotropical genus Acrobrycon. A previous study
synonymized the species, A. ipanquianus, distributed from the western portion of the …

This study aims to characterize and determine the timing of a major drainage rearrangement
between two vast river basins, each exceeding 600,000 km 2: the Paraná and São …