Results 41 to 50 of about 5,417 (192)
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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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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, 2007 Astyanax janeiroensis: rio Ribeira de Iguape basin: MHNCI 5921, 28 (2 c&s), ribeirào Pocinha, 8 Nov 1988; MZUSP 60163, 6, córrego do Franco, 24°47’S 48°33’W, 22 Mar 2000; MZUSP 71873, 2, rio Caçador, approx. 24°35’S 49°19’W, 6 Jan 2000; MZUSP 79510, 5, stream tributary of rio Três Barras, approx. 25°18’S 49°34’W, 16 May 2002.
Vinícius Abilhoa, Luiz Fernando Duboc
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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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Comparative cytogenetics of Astyanax (Teleostei: Characidae) from the upper Paraguay basin
Neotropical Ichthyology, 2018 Astyanax is one of the most abundant and diverse taxa of fishes in the Neotropical region. In order to increase the amount of cytogenetic information for Astyanax as well as to exhibit data to subsidize future taxonomic studies, this work analyzed three ...
Thais K. S. S. Teixeira +6 more
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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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Integrative Zoology, EarlyView.We found that teleosts employed two different strategies to ensure sufficient ZP (zona pellucida) synthesis: expansion of ZPB1(a) and ZPC1(a) in basal species or liver expression of ZPB1a and ZPC1aa in advanced species. The N‐terminus of expanded ZPB1(a) or ZPC1(a) and liver‐expressed ZPB1a contains repeated units or low‐complexity regions to form ...
Tian Gao +8 more
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Brazilian Journal of BiologyThe genus Astyanax is one of the most numerous of the family Characidae, comprising a large number of similar-shaped species, but displaying innumerable karyotypic variations in its chromosome number and/or structure.
A. R. Torres-Mariano, S. Morelli
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Acta Scientiarum: Biological Sciences, 2008 Este trabalho caracterizou a alimentação natural de Astyanax altiparanae na sub-bacia do rio Corumbataí e bacia do rio Jacaré-pepira, com enfoque principal na ingestão de sementes de Croton urucurana.
Leandro Muller Gomiero +1 more
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