Results 161 to 170 of about 2,260 (213)
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Submicroscopic structure of spermatozoa of a cyprinodontiform teleost, Jenynsia lineata
Zeitschrift f�r Zellforschung und Mikroskopische Anatomie, 1967A submicroscopical study of Jenynsia lineata spermatids and spermatozoa has been made. The formation of an axial nuclear cavity by folding is described. A sub-mitochondrial net with a very geometrical pattern has been found in the mid piece; to the author's knowledge this structure is not comparable to any other described up to now.
L, Dadone, R, Narbaitz
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Journal of Fish Biology, 2023
A new species of Phalloceros is described from the Tijucas, Maruim, Aririú, Cubatão do Sul, Rio da Madre, D'Una and Tubarão river basins in southern Brazil.
Igor C. A. Souto-Santos +2 more
semanticscholar +1 more source
A new species of Phalloceros is described from the Tijucas, Maruim, Aririú, Cubatão do Sul, Rio da Madre, D'Una and Tubarão river basins in southern Brazil.
Igor C. A. Souto-Santos +2 more
semanticscholar +1 more source
Micron, 2014
Fish belonging to the family Rivulidae possess one of the most complex reproductive systems. Rivulus, a genus of freshwater fish in the Rivulidae family, was recently reclassified into five genera, including Melanorivulus. Its type species, M. punctatus, is widely distributed and probably represents a species complex.
Mônica Cassel +2 more
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Fish belonging to the family Rivulidae possess one of the most complex reproductive systems. Rivulus, a genus of freshwater fish in the Rivulidae family, was recently reclassified into five genera, including Melanorivulus. Its type species, M. punctatus, is widely distributed and probably represents a species complex.
Mônica Cassel +2 more
openaire +3 more sources
Neotropical Ichthyology
Atlantirivulus santensis is currently considered as widely distributed along the coastal drainages of São Paulo State, Brazil. However, the morphological variation observed in this taxon suggests that it could represent a species complex.
E. V. Ywamoto +2 more
semanticscholar +1 more source
Atlantirivulus santensis is currently considered as widely distributed along the coastal drainages of São Paulo State, Brazil. However, the morphological variation observed in this taxon suggests that it could represent a species complex.
E. V. Ywamoto +2 more
semanticscholar +1 more source
Zootaxa, 2023
Hypsolebia antenori is a seasonal killifish considered to be broadly distributed along the Caatingas basins of northeastern Brazil, with records in the coastal drainages of the rio Pacoti, rio Jaguaribe, crrego Virglio and rio Apodi-Mossor basins.
Y. G. Abrantes +3 more
semanticscholar +1 more source
Hypsolebia antenori is a seasonal killifish considered to be broadly distributed along the Caatingas basins of northeastern Brazil, with records in the coastal drainages of the rio Pacoti, rio Jaguaribe, crrego Virglio and rio Apodi-Mossor basins.
Y. G. Abrantes +3 more
semanticscholar +1 more source
Revista de Biología Tropical
Introducción: La familia Profundulidae es un linaje de peces de agua dulce, con una distribución geográfica muy limitada que se extiende desde el sur de México hasta Centroamérica, integrada por dos géneros Profundulus y Tlaloc; este último, tiene ...
Sara E. Domínguez-Cisneros +2 more
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Introducción: La familia Profundulidae es un linaje de peces de agua dulce, con una distribución geográfica muy limitada que se extiende desde el sur de México hasta Centroamérica, integrada por dos géneros Profundulus y Tlaloc; este último, tiene ...
Sara E. Domínguez-Cisneros +2 more
semanticscholar +1 more source
Zootaxa
Moema humaita, new species, is described from a seasonal pool in the rio Madeira drainage, Amazon River basin, Brazil. The new species is assigned to the Moema staecki species group based on the color pattern in males, composed of dots following ...
D. Nielsen +2 more
semanticscholar +1 more source
Moema humaita, new species, is described from a seasonal pool in the rio Madeira drainage, Amazon River basin, Brazil. The new species is assigned to the Moema staecki species group based on the color pattern in males, composed of dots following ...
D. Nielsen +2 more
semanticscholar +1 more source
Canadian Journal of Zoology, 2023
For fishes in temperate environments, the timing of seasonal reproduction has been correlated with changes in photoperiod and temperature. In tropical environments, seasonal hydrological patterns have been found to be drivers of the onset of reproduction.
Hanna Kate Jewell +4 more
semanticscholar +1 more source
For fishes in temperate environments, the timing of seasonal reproduction has been correlated with changes in photoperiod and temperature. In tropical environments, seasonal hydrological patterns have been found to be drivers of the onset of reproduction.
Hanna Kate Jewell +4 more
semanticscholar +1 more source
Canadian Journal of Zoology
We describe Argolebias adrianae, a new species of killifish from a small temporary wetland in the Paraná Forest ecoregion with no regular or predictable temporal pattern of water availability.
F. Alonso +9 more
semanticscholar +1 more source
We describe Argolebias adrianae, a new species of killifish from a small temporary wetland in the Paraná Forest ecoregion with no regular or predictable temporal pattern of water availability.
F. Alonso +9 more
semanticscholar +1 more source