Results 31 to 40 of about 672 (177)

Evolutionary Trends of the Pharyngeal Dentition in Cypriniformes (Actinopterygii: Ostariophysi)

PLoS ONE, 2010
The fish order Cypriniformes is one of the most diverse ray-finned fish groups in the world with more than 3000 recognized species. Cypriniformes are characterized by a striking distribution of their dentition: namely the absence of oral teeth and presence of pharyngeal teeth on the last gill arch (fifth ceratobranchial).
Pasco-Viel, Emmanuel, Charles, Cyril, Chevret, Pascale, Semon, Marie, Tafforeau, Paul, Viriot, Laurent, Laudet, Vincent   +6 more
openaire   +7 more sources

First report of four characiform fishes (Ostariophysi: Characiformes) for Uruguay [PDF]

Check List, 2013
In this article the authors present the first report of four characiform fish species for Uruguay, extending their current distribution to the middle and lower Uruguay River basin: Astyanax saguazu Casciotta, Almirón and Azpelicueta, 2003; Hypobrycon poi Almirón, Casciotta, Azpelicueta and Cione, 2001; Leporinus amae Gody, 1980; Cyphocharax saladensis (
Serra, W.S., Zarucki, M., Duarte, A., Burress, E.D., Teixeira-de-Mello, F., González-Bergonzoni, I., Loureiro, M.   +6 more
openaire   +3 more sources

Biodiversity, Systematics, and Taxonomy of Ostariophysi (Osteichthyes, Actinopterygii): What We Know Today After Three Decades of Integration of Morphological and Molecular Data

Taxonomy
Ostariophysi is the second largest superorder of fishes, formed almost exclusively by freshwater species, with 102 families, 1372 genera, and 11,883 species, thus containing approximately 30% of the known fish species in the world and almost 70% of the ...
Claudio Oliveira
doaj   +1 more source

Genome Expansion of ZPB1(a) and ZPC1(a) in Basal Species or Liver Expression of ZPB1a and ZPC1aa in Advanced Species, Two Different Strategies to Ensure Sufficient ZP Synthesis in Teleosts

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, Suying Ma, Shiyi Zhang, Fan Bai, Lingyao Gan, Wenjing Tao, Feilong Wang, Deshou Wang, Lina Sun   +8 more
wiley   +1 more source

Dietary modulation of antimicrobial peptides (HAMP and LEAP2) in Chinook salmon (Oncorhynchus tshawytscha) fed a phytobiotic functional diet: Integrated genomic characterisation and tissue‐specific expression

Journal of Fish Biology, EarlyView.
Abstract Antimicrobial peptides (AMPs) are key components of the innate immune system in fish, providing rapid protection against microbial pathogens. Among these, the liver‐expressed antimicrobial peptides (LEAPs), comprising LEAP‐1 (hepcidin; HAMP) and LEAP‐2, play central roles in host defence and iron regulation.
Roberta Marcoli, Jane E. Symonds, Seumas P. Walker, Cesar Lopez, Mark A. Preece, Christopher Battershill, Steve Bird   +6 more
wiley   +1 more source

Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis

Neotropical Ichthyology
The 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, Flávio Alicino Bockmann   +1 more
doaj   +1 more source

Revalidation and redescription of Steindachnerina nigrotaenia and redescription of S. insculpta (Characiformes: Curimatidae)

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, Bruno F. Melo, Richard P. Vari, Claudio Oliveira   +3 more
doaj   +1 more source

Overlooked biodiversity of mitochondrial lineages in Hemiodus (Ostariophysi, Characiformes)

Zoologica Scripta, 2020
AbstractHemiodus is the largest genus of the South American freshwater fish family Hemiodontidae, with 23 valid species. However, the species‐level diversity of Hemiodus remains uncertain since morphological studies have indicated additional species. Also, the phylogenetic relationships among species and species boundaries within this genus are still ...
Acácio F. Nogueira, Claudio Oliveira, Francisco Langeani, André L. Netto‐Ferreira   +3 more
openaire   +3 more sources

A new Hyphessobrycon (Characiformes: Acestrorhamphidae) of the Hyphessobrycon agulha lineage of Hyphessobryconinae from the lower Aripuanã basin, Brazil, with comments about the lineage

Journal of Fish Biology, Volume 109, Issue 1, Page 58-69, July 2026.
Abstract A new species of Hyphessobrycon is described from a tributary of Rio Jatuarana, lower Rio Aripuanã basin, Rio Madeira basin, Apuí, Amazonas. The new species is part of the Hyphessobrycon agulha lineage, with the typical midlateral narrow black stripe immediately followed dorsally by an iridescent stripe.
Tiago C. Faria, Willian M. Ohara, Iann Leonardo Pinheiro Monteiro, Claudio Oliveira   +3 more
wiley   +1 more source

Three new species of Hyphessobrycon (Characiformes: Characidae) from the upper rio Araguaia basin in Brazil

Neotropical Ichthyology
Three 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
doaj   +1 more source