Results 41 to 50 of about 5,200 (218)
Neotropical IchthyologyThe 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 +1 more
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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 +3 more
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Neotropical IchthyologyThree 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
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Ecology and Evolution, Volume 8, Issue 20, Page 10039-10048, October 2018., 2018 Climate change will affect Amazonian species due to increasing temperatures and water acidification. Newly‐hatched tambaqui larvae were exposed to three climate change scenarios for 16 days. Larvae growth and skeletal development were hindered and several skeletal anomalies appeared, especially in the drastic climate change scenario.
Ivã Guidini Lopes +4 more
wiley +1 more source
Nouvelle description d’Halecopsis insignis de l’Éocène marin de l’Europe et les relations de ce taxon avec les Gonorynchiformes (Teleostei, Ostariophysi) [PDF]
, 2006 New description of dagger Halecopsis insignis from marine Eocene of Europe and relationships of this taxa with the Gonorynchiformes (Teleostei, Ostariophysi).The osteology of dagger Halecopsis insignis from the marine Eocene of Europe is briefly revised.
Gayet, M., Taverne, L.
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Developmental Dynamics, Volume 254, Issue 8, Page 887-901, August 2025.Abstract Homology in vertebrate body plans is traditionally ascribed to the high‐level conservation of regulatory components within the genetic programs governing them, particularly during the “phylotypic stage.” However, advancements in embryology and molecular phylogeny have unveiled the dynamic nature of gene repertoires responsible for early ...
Shigehiro Kuraku
wiley +1 more source
Les Cheirodontinae (Characidae, Ostariophysi) du Paraguay
Revue suisse de zoologie., 1987 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +1 more source
Redescription of Astyanax goyacensis Eigenmann, 1908 (Ostariophysi: Characiformes: Characidae) [PDF]
Neotropical Ichthyology, 2009 Astyanax goyacensis Eigenmann, 1908 is redescribed based on the holotype and 25 topotypes. The species belongs to the A. bimaculatus species complex, sharing with those species a black, horizontally ovate, humeral spot (the most conspicuous feature of this complex), two diffuse vertical brown bars in the humeral area (the first through humeral spot and
Garutti, Valdener, Langeani, Francisco
openaire +5 more sources
External Morphology of Leporinus oliveirai (Characiformes: Anostomidae) During Early Life Stages
Journal of Morphology, Volume 286, Issue 7, July 2025.Herein, we describe the early development of Leporinus oliveirai, a recently described species, documenting its external morphology with photographs and illustrations. The ontogeny of L. oliveirai is compared with other anostomids and developmental patterns are described for the family.
Ian Solon Bortoloci Ito +4 more
wiley +1 more source
Two new Bryconamericus: B. cinarucoense n. sp. and B. singularis n. sp. (Characiformes, Characidae) from the Cinaruco River, Orinoco Basin, with keys to all Venezuelan species [PDF]
, 2008 Here we describe for the first time Bryconamericus cinarucoense n. sp. and Bryconamericus singularis n. sp., two new species of Characiformesfrom the Cinaruco River, Orinoco Basin in Venezuela. B. cinarucoense n. sp.
Román-Valencia, C. +2 more
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