Results 71 to 80 of about 6,049 (231)

A taxonomic review of the species of CharaxScopoli, 1777 (Teleostei: Characidae: Characinae) with description of a new species from the rio Negro bearing superficial neuromasts on body scales, Amazon basin, Brazil

open access: yesNeotropical Ichthyology
The species of Charaxwere reviewed by Lucena (1987) who a little later (1989) added three new species to the genus. Examination of recently collected specimens from museum collections documented the more extensive geographic distribution for most species
Naércio A. Menezes   +1 more
doaj   +1 more source

CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina [PDF]

open access: yes, 2017
In May 2016 we have published the second update to CLOFFAR and in these few months a total of 22 changes have summed up. The total number of fishes known from the freshwaters of Argentina has increased to 538, caused by one new Hoplias and 13 first ...
Koerber, Stefan   +2 more
core  

Phylogenetic relationships of the enigmatic Carlastyanax aurocaudatus (Eigenmann) with remarks on the phylogeny of the Stevardiinae (Teleostei: Characidae)

open access: yesNeotropical Ichthyology
The monotypic genus Carlastyanax Géry was defined to include Astyanax aurocaudatus, a morphologically odd species having, among other features, four teeth in the posterior premaxillary row and eight branched dorsal-fin rays. Later on, the characters used
Juan Marcos Mirande   +2 more
doaj   +1 more source

A checklist of chromosome numbers and karyotypes of Amazonian freshwater fishes [PDF]

open access: yes, 1992
Une liste des nombres de chromosomes de 211 espèces de poisson du bassin amazonien est présentée. Ces espèces, appartenant à 5 ordres, sont caractérisées par une grande variabilité du nombre de chromosomes (2n = 22 à 2n = 134), par la présence de ...
Falcao, J.   +3 more
core  

Poissons Characoïdes non Characidae du Paraguay (Pisces, Ostariophysi)

open access: yesRevue suisse de zoologie., 1987
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Géry, Jacques, Mahnert, V, Dlouhy, C
openaire   +1 more source

New species of the genus Leporinus Agassiz (Characiformes: Anostomidae) from the rio Curuá, rio Xingu basin, Serra do Cachimbo, Brazil, with comments on Leporinus reticulatus

open access: yesNeotropical Ichthyology
A new species of Leporinus Agassiz is described from the rio Curuá, a tributary of the rio Iriri, rio Xingu basin, Serra do Cachimbo, Pará State, Brazil.
José L. O. Birindelli   +1 more
doaj   +1 more source

Revista de Vertebrados de la Estación Biológica de Doñana [PDF]

open access: yes, 1987
The Osteology of Barbus bocagei (Steindachner, 1866) (Pisces: Cyprinidae).El crecimiento del Cacho (Leuciscus cephalus pyraenaicus Günther, 1862) en el rio Jarama (cuenca del Tajo)Contribución al estudio de la bermejuela, Rutilus arcasi, Steindachner ...
Barrachina, P.   +25 more
core  

Trichomycterus maracaya, a new catfish from the upper rio Paraná, southeastern Brazil (Siluriformes: Trichomycteridae), with notes on the T. brasiliensis species-complex

open access: yesNeotropical Ichthyology
Trichomycterus maracaya, a new species of Trichomycteridae, is described from a streamlet in the upper rio Paraná, Poços de Caldas, State of Minas Gerais, southeastern Brazil. The following putative autapomorphies distinguishes T.
Flávio A. Bockmann, Ivan Sazima
doaj   +1 more source

The valvula cerebelli of the spiny eel, Macrognathus aculeatus, receives primary lateral-line afferents from the rostrum of the upper jaw [PDF]

open access: yes, 1991
In the spiny eel, Macrognathus aculeatus, anterodorsal and (to a lesser degree) anteroventral lateralline nerves project massively to the granular layer of the valvula cerebelli, throughout its rostrocaudal extent.
Hofmann, M. H.   +2 more
core   +1 more source

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