The history of knowledge about Amazonian biogeography is as rich as its fish community,
and a fascinating theme of study in itself. Several current paradigms and controversies about …

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 …

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 …

An expedition crowdfunded by aquarists to a region of the Brazilian state of Pará drained by
the Tapajós and Xingu river basins resulted in the capture of five species of Corydoras from …

A new species of Hemigrammus is described from the middle rio Tocantins basin, central
Brazil. The new species can be distinguished from all congeners by having a black …

Moenkhausia lineomaculata, new species, is described herein from the upper rio Juruena,
upper rio Tapajós basin. The new species seems to be part of a monophyletic group formed …

Lebiasina marilynae n. sp., L. melanoguttata n. sp., and L. minuta n. sp. are described from
the headwaters of the rio Curuá, in Serra do Cachimbo, Pará, Brazil, and represent the only …

Uma espécie nova de Moenkhausia é descrita do alto rio Machado na Chapada dos
Parecis, bacia do rio Madeira, Rondônia, Brasil. Entre as congêneres, a espécie nova é …

Os peixes registrados aqui foram coletados em quatro igarapés da bacia do alto rio
Tapajós. Expedições realizadas em 2011, 2013 e 2014 durante a estação de seca …

Three new species of Harttia from the Rio Xingu basin in the region of Serra do Cachimbo,
Pará State, Brazil, are described. Harttia rondoni n. sp., H. panara n. sp. and H. villasboas n …