Results 61 to 70 of about 672 (177)

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

Neotropical 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

Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy

Neotropical Ichthyology
The family Characidae is the most diverse among Neotropical fishes. Systematics of this family are mainly based on pre-cladistic papers, and only recently a phylogenetic hypothesis for Characidae was proposed by the author.
Juan Marcos Mirande
doaj   +1 more source

Three new species of Lebiasina (Characiformes: Lebiasinidae) from the Brazilian shield border at Serra do Cachimbo, Pará, Brazil

Neotropical Ichthyology
Lebiasina marilynae n. sp., L. melanoguttata n. sp., and L. minuta n. sp. are described from the headwaters of the rio Curuá, in Serra do Cachimbo, Pará, Brazil, and represent the only members of the Lebiasininae in the Brazilian Shied, so far.
André L. Netto-Ferreira
doaj   +1 more source

Checklist of the species of the Order Characiformes (Teleostei: Ostariophysi)

Neotropical Ichthyology
Published as part of Toledo-Piza, Mônica, Baena, Eduardo G., Dagosta, Fernando C. P., Menezes, Naércio A., Ândrade, Marcelo, Benini, Ricardo C., Bertaco, Vinicius A., Birindelli, José Luís O., Boden, Gert, Buckup, Paulo A., Camelier, Priscila, Carvalho, Fernando R., Castro, Ricardo M.
Mônica Toledo-Piza, Eduardo G. Baena, Fernando C. P. Dagosta, Naércio A. Menezes, Marcelo Ândrade, Ricardo C. Benini, Vinicius A. Bertaco, José Luís O. Birindelli, Gert Boden, Paulo A. Buckup, Priscila Camelier, Fernando R. Carvalho, Ricardo M. C. Castro, Junior Chuctaya, Eva Decru, Eddy Derijst, Casey B. Dillman, Katiane M. Ferreira, Dimitri G. Merxem, Victor Giovannetti, Alice Hirschmann, Michel Jégu, Fernando C. Jerep, Francisco Langeani, Flávio C. T. Lima, Carlos A. S. Lucena, Zilda Margarete S. Lucena, Luiz R. Malabarba, Maria Cláudia S. L. Malabarba, Manoela M. F. Marinho, Kleber Mathubara, George M. T. Mattox, Bruno F. Melo, Tuur Moelants, Cristiano R. Moreira, Tobias Musschoot, André L. Netto-Ferreira, Rafaela P. Ota, Osvaldo T. Oyakawa, Carla S. Pavanelli, Roberto E. Reis, Osmar Santos, Jane Piton Serra, Gabriel S. C. Silva, Cárlison Silva-Oliveira, Rosana Souza-Lima, Richard P. Vari, Angela M. Zanata   +47 more
openaire   +6 more sources

A state-of-art review of Loricariidae (Ostariophysi: Siluriformes) cytogenetics [PDF]

Neotropical Ichthyology
Loricariidae is a Neotropical fish family divided into six subfamilies and ranking in third among the most biodiverse fish groups. This study conducts an updated review of the cytogenetic investigations within the family, discussing the trends in ...
Francisco de Menezes Cavalcante Sassi, Marcelo de Bello Cioffi, Orlando Moreira-Filho   +2 more
doaj   +1 more source

Taxonomic revision of Galeocharax (Characiformes: Characidae: Characinae)

Neotropical Ichthyology, 2017
The taxonomy of Galeocharax, a genus of freshwater fishes distributed in most South American cis-Andean river systems, except the rio Negro, rio São Francisco and rio Xingu basins and the eastern drainages of Brazil, is herein revised.
Victor Giovannetti, Mônica Toledo-Piza, Naércio A. Menezes   +2 more
doaj   +1 more source

Two new species of Leporinus Agassiz (Characiformes: Anostomidae) from eastern basins of Brazil, and redescription of L. melanopleura Günther

Neotropical Ichthyology
Two new species of Leporinus are described from coastal rivers of southern Bahia, Brazil. One of the new species has a bright red blotch immediately dorsal to the pectoral-fin origin in life, three dark blotches along the lateral line that distinctly ...
Jose L. O. Birindelli, Heraldo A. Britski, Julio C. Garavello   +2 more
doaj   +1 more source

Sperm characteristics as additional evidence of close relationship between Lebiasina and Piabucina (Characiformes: Lebiasinidae: Lebiasininae)

Neotropical Ichthyology
Spermiogenesis and spermatozoa of representatives of the genera Lebiasina and Piabucinaare described. Spermiogenesis is quite similar among all analyzed species of these genera and is identified as Type II.
Júlio César de O. Santana, André L. Netto-Ferreira, Daniela Calcagnotto, Irani Quagio-Grassiotto   +3 more
doaj   +1 more source

A new Centromochlus Kner, 1858 (Siluriformes: Auchenipteridae: Centromochlinae) from the transition between Amazon floodplain and Guiana shield, Brazil

Neotropical Ichthyology
Species of Centromochlus are widely distributed in South America, with records for major basins such as the Amazon and Orinoco, rivers draining the Guiana Shield such as the Essequibo, Courantyne (Corantijn), Coppename, Maroni, and Oyapock, and Brazilian
Luisa Maria Sarmento-Soares, Henrique Lazzarotto, Lucia Rapp Py-Daniel, Rafael Pereira Leitão   +3 more
doaj   +1 more source

Sperm evolution in the family Alestidae with comparative data for the genus Chalceus (Ostariophysi: Characiformes)

Neotropical Ichthyology
Spermiogenesis and spermatozoa in six genera of the African family Alestidae plus the Neotropical genus Chalceusare described. Spermiogenesis is quite similar in all Alestidae and is identified as Type I and its variants.
Júlio César de O. Santana, Daniela Calcagnotto, Irani Quagio-Grassiotto   +2 more
doaj   +1 more source