Results 21 to 30 of about 80 (47)

Removing stripes from the zebra: Two new species of Characidium (Characiformes: Crenuchidae) from the Paraná and Uruguay River basins

Acta Zoológica Lilloana
An integrative taxonomic analysis based on morphological and molecular data reveals the presence of two new species of Characidium from the Paraná and Uruguay River basins. These new taxa were historically identified as Characidium cf.
Victor Ezequiel Mettola, Guillermo Enrique Terán, Wilson Sebastián Serra, Gastón Aguilera, Martin Miguel Montes, Mauricio Fabián Benitez, Felipe Alonso, Federico Ruíz Díaz, Juan Marcos Mirande   +8 more
doaj   +1 more source

Characidium heirmostigmata, a new characidiin fish (Characiformes: Crenuchidae) from the upper rio Paraná basin, Brazil

Neotropical Ichthyology
Characidium heirmostigmata new species is described from the rio Ivaí drainage, upper rio Paraná basin, Paraná State, Brazil. The new species is diagnosed among its congeners by the possession of eight to 11 incomplete oblique dark bars on the body sides,
Weferson J. da Graça, Carla S. Pavanelli   +1 more
doaj   +1 more source

Integrative taxonomy reveals a remarkably colored species of Characidium (Characiformes: Crenuchidae) from the upper rio Paraná basin, Brazil

Neotropical Ichthyology
A new species of Characidium is described from the upper rio Paraná basin, Brazil, based on morphological and molecular data. It is distinguished from congeners by its unique red body coloration in adults, a naked isthmus with scaled chest, absence of a ...
Pedro L. C. Uzeda, Bruno H. M. Stabile, Renan B. dos Reis, Luana J. Sartori, Carla S. Pavanelli, Vladimir P. Margarido, Weferson J. da Graça   +6 more
doaj   +1 more source

A new miniature of crenuchid (Teleostei, Characiformes): description, phylogenetic positioning and conjectures about body size evolution and morphological disparity in Crenuchidae

, 2023
Crenuchidae constitui um subgrupo bem estabelecido de Characiformes, amplamente distribuídos na região Neotropical, mas são taxonomicamente e morfologicamente mais diversos nas drenagens do norte da América do Sul.
Ribeiro, Douglas de Castro
core  

Análise dos cromossomos sexuais de Characidium (Characiformes, Crenuchidae) por microdissecção e pintura cromossômica

, 2013
Foram analisados exemplares de peixes das espécies Characidium cf. fasciatum, C. cf. zebra, C. cf. lagosantense, Characidium sp. e três amostras de C. cf.
Pazian, Marlon Felix [UNESP]
core   +3 more sources

Characidium xanthopterum (Ostariophysi: Characiformes: Crenuchidae): a new species from the Central Brazilian Plateau

Neotropical Ichthyology
Characidium xanthopterum is described from tributaries of the upper rio Paraná and upper rio Tocantins basins, in the Central Brazilian Plateau, Goiás State, Brazil. The new species is diagnosed among congeners by the absence of dark bars on the sides of
Luiz G. G. Silveira, Francisco Langeani, Weferson J. da Graça, Carla S. Pavanelli, Paulo A. Buckup   +4 more
doaj   +1 more source

Hydrologic and icthyologic evaluation of the middle course of the Cauca river between its tributaries (San Francisco, Campoalegre and Chinchina rivers) Caldas (Colombia) [PDF]

, 2016
Objetivos: Dar a conocer los peces asociados al cauce medio del río Cauca (municipios de Chinchiná y Palestina, departamento de Caldas, Colombia). Alcance: Inventario cualitativo y cuantitativo de los ejemplares observados y la información ...
Botero Cardona, Andrés Fernando, García Hernández, Diego, Álvarez León, Ricardo, Vargas Marín, Luis Alberto   +3 more
core   +3 more sources

A chamaeleon characin: the plant-clinging and colour-changing Ammocryptocharax elegans (Characidiinae : Crenuchidae)

, 2015
Most of the South American darters (Characidiinae) are drab-coloured, bottom-dwelling characins that lie in wait camouflaged against a predominately sandy or rocky substrate.
Zuanon, J, Sazima, I, Carvalho, LN
core   +1 more source

Aspectos da reprodução no gênero Characidium Reinhardt, 1867 (Crenuchidae, Characidiinae), na microbacia do Ribeirão Grande, serra da Mantiqueira, sudeste do Brasil = Reproduction aspects of the genus Characidium Reinhardt, 1867 (Crenuchidae, Characidiinae) in the Ribeirão Grande system, serra da Mantiqueira, southeastern Brazil

Acta Scientiarum: Biological Sciences, 2006
Neste trabalho são descritos aspectos da biologia da reprodução em Characidium lauroi e C. alipioi. A maturação das gônadas é dividida em quatro estádios e são descritos no ciclo anual.
Francisco Manoel de Souza Braga
doaj  

A chamaeleon characin: The plant-clinging and colour-changing Ammocryptocharax elegans (Characidiinae: Crenuchidae)

, 2006
Most of the South American darters (Characidiinae) are drab-coloured, bottom-dwelling characins that lie in wait camouflaged against a predominately sandy or rocky substrate.
Sazima, Ivan, Carvalho, Lucélia Nobre, Zuanon, Jansen   +2 more
core