Results 151 to 160 of about 672 (177)

Spermatic cell characteristics in Gymnotiformes (Teleostei: Ostariophysi) and their phylogenetic meaning

Journal of Fish Biology, 2009
Spermatic characteristics were studied in representatives of the families Rhamphichthyidae, Sternopygidae and Apteronotidae, and compared with pre‐existent data from Gymnotidae and Hypopomidae. The spermatic characteristics found in Gymnotiformes were also compared with data from other Ostariophysi spermatic cells.
Franca, G. F., Oliveira, C., Quagio-Grassiotto, I.   +2 more
openaire   +3 more sources

Complete mitochondrial genome of the Ictiobus cyprinellus (Actinopterygii: Ostariophysi)

Mitochondrial DNA Part A, 2015
The complete mitochondrial genome of Ictiobus cyprinellus was first determined by a polymerase chain reaction-based sequencing method in this study. The mitochondria was 16,611 bp in length, including 13 protein genes, 2 ribosomal RNA (rRNA) genes, 22 transfer RNA (tRNA) genes and 1 control region.
Xueqing, Liu, Hejun, Du, Chuan, Wu, Kan, Xiao, Huantao, Qu, Xu, Zhang, Yong, Gao, Lei, Chen   +7 more
openaire   +2 more sources

Development of the cranium and paired fins in the zebrafishDanio rerio (Ostariophysi, Cyprinidae)

Journal of Morphology, 1996
Because of the genetic and developmental information available, Danio rerio stands out as a vertebrate model system in which significant progress in the areas of development and evolution can be made. Despite its increasing popularity, little research has been done on skeletal development.
Carol C, Cubbage, Paula M, Mabee
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Pressure perception inOstariophysi

Experientia, 1960
Blinde, malleuslose Elritzen beantworten unter gunstigen Umstanden schon Schwankungen von 4–7 cm Wasserdruck mit spontanen Reflexbewegungen. Druckzunahme lost — nach bestimmter Latenzzeit — Aufwartsbewegung aus, Druckabnahme Abwartsbewegung. Auch in langfristigen Dressurversuchen wurde entsprechende Reaktion auf Schwankungen bis zu 5–6 cm Wasserdruck ...
openaire   +2 more sources

Spermiogenesis and spermatozoal ultrastructure in Trichomycteridae (Teleostei: Ostariophysi: Siluriformes)

Acta Zoologica, 2010
AbstractSpadella, M.A., Oliveira, C. and Quagio‐Grassiotto, I. 2009. Spermiogenesis and spermatozoal ultrastructure in Trichomycteridae (Teleostei: Ostariophysi: Siluriformes). —Acta Zoologica (Stockholm) 91: 373–389.Siluriformes comprises the most diverse and widely distributed ostariophysan group, a fish assemblage that includes about three quarters ...
Spadella, Maria Angelica, Oliveira, Claudio, Quagio-Grassiotto, Irani   +2 more
openaire   +2 more sources

???????????????????????????????? ?????????????????? ???????? (Teleostei, Ostariophysi) ?????? ??????????????

2019
Results of studying of the fossil remnants of bony fishes from the numerous Late Miocene localities of Southern Ukraine, dated by Late Sarmatian (MN 11): Palievo, Otradovo, Kubanka 2 and Novoelozavetovka 2, are presented in the paper. 20 species of 15 genera, 4 families and 4 orders (Cypriniformes, Siluriformes, Esociformes, Perciformes) were ...
openaire   +1 more source

Revision of the Genus Gonorynchus Scopoli, 1777 (Teleostei: Ostariophysi)

Copeia, 1999
Five valid species of Gonorynchus (Ostariophysi: Gonorynchiformes: Gonorynchidae) are diagnosed on the basis of internal and external morphology (e.g., vertebrae number, lateral line scale counts, mouth morphology, caudal skeleton morphology). These are Gonorynchus gonorynchus, G. greyi, G. forsteri, G. abbreviatus, and G. moseleyi.
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Order OSTARIOPHYSI Sagemehl.

1913
Max Weber, L. F. de Beaufort
openaire   +1 more source

Clupeomorpha, Sister-Group of Ostariophysi

1996
G. Lecointre, G. Nelson
openaire   +1 more source

Chromosome Variability in Gymnotiformes (Teleostei: Ostariophysi)

2007
Lurdes Foresti de Almeida-Toledo, Maria de Fatima Zambelli Daniel-Silva, Cinthia Bachir Moysés, Fausto Foresti   +3 more
openaire   +1 more source