Results 181 to 190 of about 5,200 (218)

Schreckreaktion und Schreckstoffzellen bei Ostariophysi und Gonorhynchiformes

Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology, 1967
1. Nach fruheren Erfahrungen mit 200 Fischarten (109 Ostariophysi, 91 Arten aus anderen Ordnungen, „Nicht-Ostariophysen“) sind Schreckreaktion, Schreckstoff und Schreckstoffzellen auf die Ostariophysi beschrankt und innerhalb dieser Ordnung sehr weit verbreitet.
exaly   +2 more sources

On the diploid state of the fish order Ostariophysi

Chromosoma, 1968
Our previous study on the order Ostariophysi was limited to members of the family Cyprinidae, suborder Cyprinidea. It was shown that the carp and the goldfish with 104 chromosomes and a DNA value of 50% that of mammals are tetraploid, as the diploid species of this family has 50–52 chromosomes and a 25% DNA value. In order to obtain some idea as to how
J I, Muramoto, S, Ohno, N B, Atkin
exaly   +3 more sources

Myanmar (Teleostei: Ostariophysi: Siluriformes: Erethistidae)

2003
Britz, Ralf, Ferraris, Carl J. (2003): Myanmar (Teleostei: Ostariophysi: Siluriformes: Erethistidae).
Britz, Ralf, Ferraris, Carl J.
openaire   +1 more source

Some characteristic otoliths of American ostariophysi

Journal of Morphology, 1940
exaly   +2 more sources

Speculation on the History of the Ostariophysi

Copeia, 1930
exaly   +2 more sources

Microanatomy of the paired‐fin pads of ostariophysan fishes (Teleostei: Ostariophysi)

Journal of Morphology, 2012
AbstractMembers of the teleost superorder Ostariophysi dominate freshwater habitats on all continents except Antarctica and Australia. Obligate benthic and rheophilic taxa from four different orders of the Ostariophysi (Gonorynchiformes, Cypriniformes, Characiformes, and Siluriformes) frequently exhibit thickened pads of skin along the ventral surface ...
Kevin W Conway, Nathan K Lujan, Richard L Mayden   +2 more
exaly   +3 more sources

Phylogenetic relationships of the South American Doradoidea (Ostariophysi: Siluriformes) [PDF]

Neotropical Ichthyology, 2014
A phylogenetic analysis based on 311 morphological characters is presented for most species of the Doradidae, all genera of the Auchenipteridae, and representatives of 16 other catfish families. The hypothesis that was derived from the six most parsimonious trees support the monophyly of the South American Doradoidea (Doradidae plus Auchenipteridae ...
José L O Birindelli
exaly   +5 more sources

Miniaturization in Alestidae (Ostariophysi: Alestidae)

2020
Alestidae (African tetras) is one of the most species-rich families of the order Characiformes and exhibits a pronounced diversity of body size. Two independent miniaturization events (a drastic phylogenetic decrease in body size) have been identified in Alestidae.
openaire   +1 more source

The Gill Arches of Psilorhynchus (Ostariophysi: Psilorhynchidae)

Copeia, 2007
Abstract Members of the genus Psilorhynchus are small cypriniform fishes adapted for life in the fast flowing streams of the Ganga–Brahmaputra drainage of India and Eastern Nepal and the Ayeyarwady drainage of Northern Myanmar and adjacent China. The systematic placement of Psilorhynchus within existing cypriniform classification schemes has been ...
Kevin W. Conway, Richard L. Mayden
openaire   +1 more source