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Hisonotus insperatus: New Species, from the Upper Rio Paraná Basin (Pisces: Ostariophysi: Loricariidae)
Abstract Hisonotus insperatus, new species, is distinguished from all the other species of the genus Hisonotus Eigenmann and Eigenmann by the combination of a pair of rostral plates at the tip of theExpand
Description of two new sympatric species of the genus Hisonotus Eigenmann and Eigenmann, 1889, from upper Rio Tapajós, Mato Grosso state, Brazil (Pisces: Ostariophysi: Loricariidae).
Two new species of the genus Hisonotus are described from the upper Rio Tapajós basin, Mato Grosso State, Brazil. They are small species, growing up to about 30.0 mm SL, having the scapular bridgeExpand
Structure and evolution of tetraodontoid teeth: An autoradiographic study (pisces, Tetraodontiformes)
For years teeth of tetraodontoid fishes generally have been considered coalescent even though “coalescence,” which also is found in fishes of other families, has never been well defined. This paperExpand
Salminus franciscanus, a new species from the rio São Francisco basin, Brazil (Ostariophysi: Characiformes: Characidae)
Salminus franciscanus, the large-sized dourado from the rio Sao Francisco basin, Brazil, is described. The new species was actually known ichthyologically since at least Valenciennes (in Cuvier &Expand
Apareiodon Eigenmann, 1916 (Teleostei, Characiformes), from the Tocantins-Araguaia Basin, with Description of Three New Species
Abstract Apareiodon species from the Rio Tocantins-Araguaia basin, Brazil, were investigated to determine the recognizable species in that basin. Apareiodon machrisi Travassos, 1957, the onlyExpand
Comparative morphology of the gas bladder in driftwood catfishes (Siluriformes: Auchenipteridae)
The gross morphology of the gas bladder is described and illustrated for representatives of most species and all valid genera of the Auchenipteridae (Siluriformes). Although, a simple cordiform gasExpand
Taxonomic Impediment or Impediment to Taxonomy? A Commentary on Systematics and the Cybertaxonomic-Automation Paradigm
Marcelo R. de Carvalho AE Flavio A. Bockmann AE Dalton S. Amorim AE Carlos Roberto F. Brandao AE Mario de Vivo AE Jose L. de Figueiredo AE Heraldo A. Britski AE Mario C. C. de Pinna AE Naercio A.Expand
A new Moenkhausia ( Characiformes : Characidae ) from central Brazil , with comments on the area relationship between the upper rio Tapajós and upper rio Paraguai systems
A new species of Moenkhausia is described from the rio Juba, tributary of the rio Sepotuba (upper rio Paraguai basin), the rio Juruena and its tributary, the rio Papagaio (upper rio Tapajós basin),Expand