Description of a new species of Moenkhausia (Characiformes: Characidae) from the upper Paraguay basin, Central Brazil, with comments on its phylogenetic relationships
- BiologyNeotropical Ichthyology
The phylogenetic position of the new species is presented based on molecular data, showing a close relationship among species of Moenkhausia and Hemigrammus that have a well-defined dark line at the base of the anal fin.
A new species of Bryconamericus (Characidae: Stevardiinae: Diapomini) from the upper rio Paraná basin, Brazil
The new species is syntopic with other Stervadiinae in the upper rio Paraná basin such as B. iheringii, B. turiuba, Piabarchus stramineus, and Piabina argentea and has unaligned teeth in the outer tooth row of the premaxilla.
A phylogeny of Astyanax (Characiformes: Characidae) in Central and North America.
A phylogeny is presented for 34 species of Astyanax, 27 of them once included within A. aeneus or A. fasciatus in Central America and Mexico, based on 52 morphological characters, which point at a more complex biogeographic history of the region than usually recognized.
Redescription of Moenkhausia melogramma (Characiformes: Characidae), a poorly known tetra from the western Amazon basin
Moenkhausia melogramma is herein redescribed, based on the examination of the holotype plus additional specimens from the western Amazon basin in Brazil, Colombia, Peru, and Ecuador, and the Hemigrammus lunatus species-group.
Checklist of the Fishes of Paraguay (CLOFPY)
A checklist of all freshwater fish species demonstrated to occur in Paraguay is presented with the aim of providing an updated list of all known fishes from Paraguay and to establish a baseline to…
Redescription of Moenkhausia megalops (Eigenmann, 1907), a widespread tetra from the Amazon basin (Characiformes, Characidae)
Moenkhausia megalops is redescribed based on the examination of the holotype and additional specimens from drainages of the Amazon basin and the type locality.
A new species of Moenkhausia (Characiformes, Characidae) from the Içá River, Amazon Basin, northern Brazil
A new species of the genus Moenkhausia is described from the Içá River, Amazon Basin. Moenkhausia britskii sp. n. is most similar to M. grandisquamis and M. xinguensis. From these two species it is…
A new species of Knodus (Characiformes: Characidae: Stevardiinae) from the rio Aripuanã, rio Madeira basin, Brazil
A new species of the characid genus Knodus is described from the rio Aripuanã (rio Madeira basin) and is compared to incertae sedis species of ‘Bryconamericus’ from northern South America since phylogenetic studies suggest a closer relationship of those species with Knodus.
Revision of the Astyanax orthodus species-group (Teleostei: Characidae) with descriptions of three new species
The Astyanax orthodus species-group includes nine species: Astyanax boliviensis sp. nov., A. bopiensis nom. nov., A. embera sp. nov., A. gandhiae sp. nov., A. moorii comb. nov., A. orthodus , A.…
Range extension of Moenkhausia oligolepis (Günther,1864) to the Pindaré river drainage, of Mearim river basin, and Itapecuru river basin of northeastern Brazil (Characiformes: Characidae)
- Environmental Science
The present study reports range extansion of Moenkhausia oligolepis to the Pindare river drainage, of the Mearim river basin, and Itapecuru river basin, Maranhao state, northeastern Brazil. This…