Results 21 to 30 of about 14,954 (263)
Highlighting Astyanax Species Diversity through DNA Barcoding. [PDF]
PLoS ONE, 2016 DNA barcoding has been used extensively to solve taxonomic questions and identify new species. Neotropical fishes are found in a wide variety of shapes and sizes, with a large number of species yet to be described, many of which are very difficult to ...
Bruno César Rossini +7 more
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Cytogenetic markers as a tool for characterization of hybrids of Astyanax Baird & Girard, 1854 and Hyphessobrycon Eigenmann, 1907 [PDF]
Comparative Cytogenetics, 2020 Astyanax Baird et Girard, 1854, is one of the largest genera in the family Characidae and comprises 177 valid species. This genus has been the focus of cytogenetic studies primarily owing to the presence of B chromosomes and high karyotypic diversity ...
Caio Augusto Gomes Goes +7 more
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Acta Scientiarum: Biological Sciences, 2008 Neste trabalho foi obtido o fator de condição relativo de Hypostomus strigaticeps, Astyanax altiparanae, Astyanax scabripinnis, Astyanax fasciatus, Astyanax sp1., Characidium aff. zebra, Piabina argentea, Hypostomus ancistroides, Hypostomus sp1., Parodon
Leandro Muller Gomiero +1 more
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Occurrence of Astyanax dissensus Lucena & Thofehrn, 2013 (Teleostei: Characidae) in Argentina [PDF]
, 2016 The occurrence of Astyanax dissensus in the Uruguay River, at Yapeyú, Corrientes, Argentina is reported for the first time in the country.Fil: Teran, Guillermo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas.
Alonso, Felipe +4 more
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Karyotypic diversity among three species of the genus Astyanax (Characiformes: Characidae)
Brazilian Journal of BiologyThe group Incertae sedis within the Characidae family currently includes 88 genera, previously included in the subfamily Tetragonopterinae. Among them is the genus Astyanax comprising a group of species with similar morphology and widely distributed in ...
P. B. Nishiyama +5 more
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Osteología de Astyanax aurocaudatus Eigenmann, 1913 (Pisces, Characidae), con notas sobre la validez de Carlastyanax Géry, 1972 [PDF]
Animal Biodiversity and Conservation, 2006 Osteology of Astyanax aurocaudatus, Eigenmann, 1913 (Pisces, Characidae), with notes on the validity of Carlastyanax, Géry, 1972. The taxonomic status of Astyanax aurocaudatus is difficult to interpret as no relevant osteological data are available to
Ruiz-C., R. I., Román-Valencia, C.
doaj
Animal Biodiversity and Conservation, 2007 No hay información osteológica sobre Astyanax aurocaudatus que contribuya a interpretar correctamente su estado taxonómico. En este trabajo se realizaron observaciones osteológicas, morfométricas y merísticas.
R. I. Ruiz-C., C. Román-Valencia
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Complex Evolutionary and Genetic Patterns Characterize the Loss of Scleral Ossification in the Blind Cavefish Astyanax mexicanus. [PDF]
PLoS ONE, 2015 The sclera is the tough outer covering of the eye that provides structural support and helps maintain intraocular pressure. In some fishes, reptiles, and birds, the sclera is reinforced with an additional ring of hyaline cartilage or bone that forms from
Kelly E O'Quin +5 more
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European Journal of Taxonomy, 2018 The Astyanax orthodus species-group includes nine species: Astyanax boliviensis sp. nov., A. bopiensis nom. nov., A. embera sp. nov., A. gandhiae sp. nov., A. moorii comb. nov., A. orthodus, A. superbus, A. villwocki and A. yariguies comb. nov. The group
Raquel I. Riuz-C +4 more
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Brazilian Journal of BiologyFive 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
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