Results 21 to 30 of about 661 (158)

Description of a new species of Tatia from rio Tocantins drainage, central Brazil, with notes on Tatia simplex Mees, 1974 (Siluriformes, Auchenipteridae) [PDF]

Neotropical Ichthyology, 2020
Tatia comprises twenty-five valid species, distributed in the main inland watersheds of South America, including the Orinoco, Essequibo, and coastal rivers of Suriname, Amazon, upper rio Paraná and São Francisco basins.
Jordson de Souza e Souza, Luisa M. Sarmento-Soares, André L. Colares Canto, Frank Raynner V. Ribeiro   +3 more
doaj   +1 more source

Evolutionary Trends of the Pharyngeal Dentition in Cypriniformes (Actinopterygii: Ostariophysi)

PLoS ONE, 2010
The fish order Cypriniformes is one of the most diverse ray-finned fish groups in the world with more than 3000 recognized species. Cypriniformes are characterized by a striking distribution of their dentition: namely the absence of oral teeth and presence of pharyngeal teeth on the last gill arch (fifth ceratobranchial).
Pasco-Viel, Emmanuel, Charles, Cyril, Chevret, Pascale, Semon, Marie, Tafforeau, Paul, Viriot, Laurent, Laudet, Vincent   +6 more
openaire   +7 more sources

First report of four characiform fishes (Ostariophysi: Characiformes) for Uruguay [PDF]

Check List, 2013
In this article the authors present the first report of four characiform fish species for Uruguay, extending their current distribution to the middle and lower Uruguay River basin: Astyanax saguazu Casciotta, Almirón and Azpelicueta, 2003; Hypobrycon poi Almirón, Casciotta, Azpelicueta and Cione, 2001; Leporinus amae Gody, 1980; Cyphocharax saladensis (
Serra, W.S., Zarucki, M., Duarte, A., Burress, E.D., Teixeira-de-Mello, F., González-Bergonzoni, I., Loureiro, M.   +6 more
openaire   +3 more sources

Biodiversity, Systematics, and Taxonomy of Ostariophysi (Osteichthyes, Actinopterygii): What We Know Today After Three Decades of Integration of Morphological and Molecular Data

Taxonomy
Ostariophysi is the second largest superorder of fishes, formed almost exclusively by freshwater species, with 102 families, 1372 genera, and 11,883 species, thus containing approximately 30% of the known fish species in the world and almost 70% of the ...
Claudio Oliveira
doaj   +1 more source

Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis

Neotropical Ichthyology
The skeletal muscles of the dorsolateral region of the head of the Nematogenyidae and representatives of the all major clades of the Trichomycteridae are described and illustrated.
Aléssio Datovo, Flávio Alicino Bockmann   +1 more
doaj   +1 more source

Revalidation and redescription of Steindachnerina nigrotaenia and redescription of S. insculpta (Characiformes: Curimatidae)

Neotropical Ichthyology, 2019
Steindachnerina nigrotaenia is resurrected from the synonym of S. brevipinna and considered a valid species. The previous designation of the lectotype of S. nigrotaenia is considered invalid and a new lectotype is designated herein.
Heraldo A. Britski, Bruno F. Melo, Richard P. Vari, Claudio Oliveira   +3 more
doaj   +1 more source

Nomenclatural note on the genus Nans (Ostariophysi, Characidae)

Revue suisse de zoologie, 2006
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Juan Marcos Mirande, Gastón Aguilera, María de las Mercedes. Azpelicueta   +2 more
openaire   +2 more sources

Overlooked biodiversity of mitochondrial lineages in Hemiodus (Ostariophysi, Characiformes)

Zoologica Scripta, 2020
AbstractHemiodus is the largest genus of the South American freshwater fish family Hemiodontidae, with 23 valid species. However, the species‐level diversity of Hemiodus remains uncertain since morphological studies have indicated additional species. Also, the phylogenetic relationships among species and species boundaries within this genus are still ...
Acácio F. Nogueira, Claudio Oliveira, Francisco Langeani, André L. Netto‐Ferreira   +3 more
openaire   +3 more sources

Three new species of Hyphessobrycon (Characiformes: Characidae) from the upper rio Araguaia basin in Brazil

Neotropical Ichthyology
Three new species of Hyphessobrycon (Characiformes: Characidae) are described from the upper rio Araguaia basin. Hyphessobrycon langeanii n. sp. is distinguished from all congeners by the presence of a well-defined, round humeral spot, a reticulate color
Flávio C. T. Lima, Cristiano R. Moreira
doaj   +1 more source

Callichthyidae (Ostariophysi: Siluriformes) dissection protocol v1 [PDF]

, 2018
This protocol shows how to dissect callichthyid fishes without losing importante anatomical information about the relative position and shape of internal organs.
Karina Carvalho F. Ferreira, Marcelo Ribeiro de Britto   +1 more
openaire   +1 more source