Results 51 to 60 of about 5,200 (218)

Possible multiple evolution of indirect telencephalo-cerebellar pathways in teleosts: studies in Carassius auratus and Pantodon buchholzi [PDF]

, 1993
Among vertebrates, telencephalo-pontine systems exist only in birds and mammals. However, three nuclei in the diencephalon and mesencephalon of teleost fishes have been indicated — analogous to the pons — to represent relay stations between telencephalon
Meyer, Dietrich L., Wullimann, Mario F.
core   +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

Reappraisal of Rhamdia branneri Haseman, 1911 and R. voulezi Haseman, 1911 (Siluriformes: Heptapteridae) from the rio Iguaçu with notes on their morphometry and karyotype

Neotropical Ichthyology
The species Rhamdia branneri Haseman, 1911 and the subspecies Rhamdia branneri voulezi Haseman, 1911 from rio Iguaçu are currently recognized as synonyms of Rhamdia quelen (Quoy & Gaimard, 1824).
Julio Cesar Garavello, Oscar Akio Shibatta   +1 more
doaj   +1 more source

Fishes from the Upper Cretaceous Prince Creek Formation, North Slope of Alaska, and their palaeobiogeographical significance

Papers in Palaeontology, Volume 11, Issue 3, May/June 2025.
Abstract The Upper Cretaceous Prince Creek Formation (PCF) of northern Alaska offers a unique glimpse into northern high‐latitude, non‐marine vertebrate assemblages, providing critical data on polar ecosystems during the late Campanian (c. 73 Ma).
Donald B. Brinkman, J. Andrés López, Gregory M. Erickson, Jaelyn J. Eberle, Xochitl Muñoz, Lauren N. Wilson, Zackary R. Perry, Alison M. Murray, Lisa Van Loon, Neil R. Banerjee, Patrick S. Druckenmiller   +10 more
wiley   +1 more source

On the homologies of the skeletal components of catfish (Teleostei: Siluriformes) suspensorium [PDF]

, 2001
There has been much controversy concerning the identity of the components of the suspensorium in Siluriformes (catfishes). This confusion has implications not only for comparative morphology, but also for phylogenetic studies.
Chardon, M., Diogo, R., Oliveira, C.
core  

Biologia e características populacionais de uma espécie rara de Pseudopimelodidae da Bacia do Alto Rio Paraná [PDF]

, 2010
Streams contain an expressive fraction of the South American fish diversity, mostly composed of small-sized, endemic, and rare species. Populational, reproductive, and diet aspects of Microglanis garavelloi were studied, aiming to make a wide ...
ARCIFA, Marlene Sofia, ESGUÍCERO, André Luiz Henríques   +1 more
core   +1 more source

Precaudal Vertebrae in the Postcranial Region of Moray Eels Form Ventral Processes

Journal of Morphology, Volume 285, Issue 10, October 2024.
The precaudal vertebrae in the postcranial region of moray eels form ventral processes with blood vessels. ABSTRACT Fish vertebrae are primarily morphologically classified into precaudal vertebrae jointed to the ribs and caudal vertebrae with hemal spines, through which the caudal artery and veins pass.
Yuu Usui, Naoki Yamane, Akira Hanashima, Ken Hashimoto, Yuji Kanaoka, Satoshi Mohri   +5 more
wiley   +1 more source

Molecular phylogenetics, a new classification, and a new genus of the Neotropical fish family Anostomidae (Teleostei: Characiformes) [PDF]

Neotropical Ichthyology
Phylogenetic reconstruction of the Neotropical freshwater fish family Anostomidae using multilocus sequence data from 97 species supports the recognition of three subfamilies: Leporellinae with one genus, Anostominae with six genera, and Leporininae with
Brian L. Sidlauskas, Bruno F. Melo, José L. O. Birindelli, Michael D. Burns, Benjamin W. Frable, Kendra Hoekzema, Casey B. Dillman, Mark H. Sabaj, Claudio Oliveira   +8 more
doaj   +1 more source

The Distribution of the Fishes of the Order Ostariophysi [PDF]

Bijdragen tot de Dierkunde, 1922
The Ostariophysi are Teleostean Fishes in which the air bladder is connected with the internal ear by a chain of ossicles, the Weberian ossicles, which are modified elements of the anterior vertebrae. Although the order is a large and varied one it is undoubtedly natural, and its importance in Zoogeography arises from the fact that it is dominant in ...
openaire   +2 more sources

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