Neotropical freshwater fishes (NFFs) constitute the most diverse continental vertebrate fauna
on Earth, with more than 6,200 named species compressed into an aquatic footprint< 0.5 …

The lateral-line system has been traditionally recognized as an important source of
phylogenetic information for different groups of fishes. Although extensively studied in …

A checklist of recent and fossil fishes of the Order Characiformes is presented herein and
believed to be complete through 2022. A total of 47 collaborators checked and provided …

Color traits are highly influenced by environmental conditions along the distributional range
of many species. Studies on the variation of animal coloration across different geographic …

Sexually selected traits have long been thought to drive diversification, but support for this
hypothesis has been persistently controversial. In fishes, sexually dimorphic coloration is …

A new species of Moenkhausia is described from the rio Machado drainage, Amazon basin,
Brazil. It is diagnosed from congeners by its color pattern, consisting of the concentration of …

Among the order Characiformes, secondary sexual dimorphism is commonly associated to
the occurrence of bony hooks on fins, shape and length of the dorsal and anal fins, and …

ABSTRACT A new species of Hyphessobrycon is described from the rio Mutum, a tributary of
the rio Juruena, rio Tapajós basin, Brazil. The new taxon can be distinguished from its …

A new species of the genus Pristella Eigenmann, 1908 (Pristella crinogi sp. nov.) is
described from the middle rio Tocantins and middle rio São Francisco basins, Brazil. The …

C. kraussii is an endemic fish species from Colombia and Venezuela and represents a
valuable food resource for local human communities. Due to its economic importance, the …