Results 181 to 190 of about 18,922 (223)

Interrelationships of Gasterosteiformes (Actinopterygii, Percomorpha)

Journal of Ichthyology, 2006
Phylogenetic relationships of Gasterosteiformes were studied using osteological examination of representatives of 11 families of gasterosteiform fishes, as ingroups, and 5 families of other smegmamorph fishes (Atheriniformes, Elassomatiformes, and Synbranchiformes), as outgroups. Based on phylogenetic analysis of 110 informative osteological characters,
Y. Keivany, J. S. Nelson
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Polypteridae (Actinopterygii: Cladistia) and DANA-SINEs insertions

Marine Genomics, 2010
SINE sequences are interspersed throughout virtually all eukaryotic genomes and greatly outnumber the other repetitive elements. These sequences are of increasing interest for phylogenetic studies because of their diagnostic power for establishing common ancestry among taxa, once properly characterized. We identified and characterized a peculiar family
MORESCALCHI M. A, BARUCCA M, STINGO, Vincenzo, CAPRIGLIONE T.   +3 more
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Actinopterygii

Published as part of Barták, Pavel, Ivanov, Martin, Tihlaříková, Eva, Olbert, Martin & Neděla, Vilém, 2024, New, large actinopterygian fishes from the upper Carboniferous of Nýřany, Czech Republic, pp. 501-522 in Acta Palaeontologica Polonica 69 (3) on pages 511-512, DOI: 10.4202/app.01162.2024, http://zenodo.org/record ...
Barták, Pavel, Ivanov, Martin, Tihlaříková, Eva, Olbert, Martin, Neděla, Vilém   +4 more
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Sperm maturation in sturgeon (Actinopterygii, Acipenseriformes): A review

Theriogenology, 2017
The morphology of the reproductive system of acipenseriform fishes is quite different from that of teleostean species, but an associated unique physiological difference in male sturgeons was not discovered until recently; sperm of sturgeons passes through the kidneys then via Wolffian ducts into the environment rather that emptying directly through ...
Borys, Dzyuba, Jacky, Cosson, Viktoriya, Dzyuba, Pavlo, Fedorov, Olga, Bondarenko, Marek, Rodina, Otomar, Linhart, William L, Shelton, Sergii, Boryshpolets   +8 more
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Ray-finned fishes (Actinopterygii)

2009
Abstract Actinopterygii, or ray-Anned Ashes, are one of the two major lineages of osteichthyan vertebrates, the other being Sarcopterygii (1). 7ere are more than 26,890 species of actinopterygian Ashes and the group has diversiAed into a wide range of marine and freshwater habitats (2).
Thomas J Neara, Masaki Miyab
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Primary structure of stanniocalcin in two basal Actinopterygii

General and Comparative Endocrinology, 2004
The primary structure of stanniocalcin (STC), the principal product of the corpuscles of Stannius (CS) in ray-finned fishes, was deduced from STC cDNA clones for two species of holostean, the gar, Lepisosteus osseus and the bowfin, Amia calva. Overlapping partial cDNA clones were amplified by polymerase chain reaction (PCR) from single-strand cDNA of ...
Yutaka, Amemiya, John H, Youson
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III ACTINOPTERYGII, Strahl(en)flosser

2014
Die Actinopterygii bilden den uberwiegenden Teil der rezenten Fischfauna, wahrend die Fischformen der Sarcopterygii (S. 288) heute nur noch mit wenigen Arten der Dipnoi (Lungenfische) (S. 290) und Actinistia (Hohlstachler) (S. 296) vertreten sind.
Wilfried Westheide, Gunde Rieger
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Osteichthyes: Immune Systems of Teleosts (Actinopterygii)

2018
Teleosts and elasmobranchs are the lowest vertebrates that possess adaptive immunity akin to mammalian ones. However, the fish immune system is different from that of mammals, that is, a lack of bone marrow, lymph nodes and germinal center. Their immune system is also characterized by the fact that their surface is covered by live cells with mucus in ...
Teruyuki Nakanishi, Jun-ichi Hikima, Takashi Yada   +2 more
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Denticles in fossil Actinopterygii.

Journal of Cell Science, 1942
ABSTRACT It has long been known that true denticles, as opposed to mere ridges, tubercles, or spines of the outer ganoine layer may occur on the exposed surface of the scales and dermal bones of living Actinopterygii such as Poly pt er us orLepidosteus.
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ACTINOPTERYGII, Strahl(en) flosser

2010
Die Actinopterygii bilden den uberwiegenden Teil der rezenten Fischfauna, wah rend die Fischformen der Sarcopterygii (S. 307) heute nur noch mit wenigen Arten der Dipnoi (Lungenfische) (S. 309) und Actinistia (Hohlstachler) (S. 315) vertreten sind. Der Name „Strahlflosser“ bezieht sich auf die strahlenformig angeordneten Lepidotrichia, die die Flossen ...
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