Results 71 to 80 of about 672 (177)

Five new species of genus Astyanax Baird & Girard, 1854 from Rio Iguaçu, Paraná, Brazil (Ostariophysi, Characiformes, Characidae)

open access: yesBrazilian Journal of Biology
Five new species of the Neotropical characiform genus Astyanax Baird & Girard are described from Rio Iguaçu at the border of Paraná and Santa Catarina states, southeastern Brazil and Astyanax gymnogenis Eigenmann is redescribed.
JC. Garavello, FAA Sampaio
doaj   +1 more source

Higher-level Names for Catfishes (Actinopterygii: Ostariophysi: Siluriformes)

open access: yes, 1999
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Ferraris, Carl J.   +1 more
openaire   +1 more source

Redescription of Leporinus jamesi (Characiformes: Anostomidae), a poorly known species of Leporinus from the lowlands of the central Amazon, Brazil

open access: yesNeotropical Ichthyology
The poorly known Leporinus jamesiis redescribed. The species was originally described based on a single specimen collected in the rio Solimões at Manacapuru, in the central Amazon, Brazil.
Júlio C. Garavello   +2 more
doaj   +1 more source

Harttia absaberi, a new species of loricariid catfish (Siluriformes: Loricariidae: Loricariinae) from the upper rio Paraná basin, Brazil

open access: yesNeotropical Ichthyology
A new species of Harttia, tribe Harttiini, is described from tributaries of upper portions of rio Paraná drainage. The new species, the smallest known species of the genus, attaining up to 74.0 mm of standard length, can be distinguished from its ...
Osvaldo Takeshi Oyakawa   +2 more
doaj   +1 more source

Revision of genus Steindachneridion (Siluriformes: Pimelodidae)

open access: yesNeotropical Ichthyology
After several years collecting in the type-localities and studying representative samples of genus Steindachneridion Eigenmann & Eigenmann, 1919 from Brazilian and foreign museums, a taxonomic revision of the Recent species of the genus is presented ...
Julio Cesar Garavello
doaj   +1 more source

Isolation and Characterization of the Arapaima gigas Growth Hormone (ag-GH) cDNA and Three-Dimensional Modeling of This Hormone in Comparison with the Human Hormone (hGH). [PDF]

open access: yesBiomolecules, 2023
Lima ER   +13 more
europepmc   +1 more source

A new species of Moenkhausia Eigenmann (Characiformes: Characidae) from the upper rio Machado at Chapada dos Parecis, rio Madeira basin, Brazil

open access: yesNeotropical Ichthyology
A new species of Moenkhausia is described from the upper rio Machado at Chapada dos Parecis, rio Madeira basin, Rondônia State, Brazil. Among congeners, the new species is similar to Moenkhausia chlorophthalma, M. cotinho , M. lineomaculata , M. plumbea,
William M. Ohara, Manoela M. F. Marinho
doaj   +1 more source

Taxonomy, phylogeny and biogeography of catfishes (Ostariophysi, Siluroidei): an overview

open access: yesAquatic Living Resources, 1996
An overview is given of our present knowledge on taxonomy, phylogeny and biogeography of catfishes or Siluroidei, one of the worlds economically important groups of fresh and brackish water fishes. In an introductory chapter, the taxonomic position of catfishes in the ichthyological classification is discussed; their external morphology is briefly ...
openaire   +1 more source

The brain of Brycon orbignyanus (Valenciennes, 1850) (Teleostei: Characiformes: Bryconidae): gross morphology and phylogenetic considerations

open access: yesNeotropical Ichthyology
The brain of Brycon orbignyanus is described as a model for future studies of the gross morphology of the central nervous system in Characiformes. The study of brain gross morphology of 48 distinct taxa of Characiformes, one of Cypriniformes, two of ...
Thiago N. A. Pereira   +1 more
doaj   +1 more source

Sistemática de Piabina Reinhardt, 1867 (Ostariophysi: Characidae)

open access: yes, 2016
A sistemática de Piabina Reinhardt, 1867 tem sido questionada recentemente. Espécies novas e possíveis sinônimos (e.g., Astyanax paranahybae) foram sugeridos para o gênero e a espécie-tipo, Piabina argentea, foi considerada recentemente um complexo de espécies.
openaire   +2 more sources

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