Results 141 to 150 of about 672 (177)

Some characteristic otoliths of American ostariophysi

Journal of Morphology, 1940
exaly   +2 more sources

A standardized terminology of spines in the order Siluriformes (Actinopterygii: Ostariophysi)

Zoological Journal of the Linnean Society, 2021
Abstract A standardized terminology for the anatomy of pectoral- and dorsal-fin spines in the order Siluriformes is proposed based on an extensive literature review and direct examination of representatives of the order. The adult anatomy of the spines is described in detail.
Gustavo A Ballen, Mario C C De Pinna
openaire   +2 more sources

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.
Wolfgang Pfeiffer, Pfeiffer Wolfgang
exaly   +2 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 pectoral anatomy of selected ostariophysi I. The characiniformes

Journal of Morphology, 1976
AbstractThe muscles and bones of the pectoral fin of Serrasalmus nattereri, the piranha, resemble those of generalized, lower teleosts with specializations related to a body shape adapted for high‐speed carnivory; the pectoral fins being highly mobile with strong ligaments to the rays.
openaire   +2 more sources

Checklist of Gymnotiformes (Osteichthyes: Ostariophysi) and catalogue of primary types [PDF]

Neotropical Ichthyology, 2017
ABSTRACT A list of all valid names of species of Neotropical electric fishes (Gymnotiformes) is presented herein. The list is arranged by family and genus and includes all available synonyms. The list is comprehensive through 2016 and includes 240 valid species distributed among 34 genera and five families, including one monotypic genus known only from
C David De Santana, Richard P Vari, Carl J Ferraris   +2 more
exaly   +6 more sources

Myanmar (Teleostei: Ostariophysi: Siluriformes: Erethistidae)

2003
Britz, Ralf, Ferraris, Carl J. (2003): Myanmar (Teleostei: Ostariophysi: Siluriformes: Erethistidae).
Britz, Ralf, Ferraris, Carl J.
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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, John G, Lundberg, Richard L, Mayden, Dustin S, Siegel   +4 more
openaire   +2 more sources

Molecular phylogeny of the armored catfish family Callichthyidae (Ostariophysi, Siluriformes)

Molecular Phylogenetics and Evolution, 2004
The family Callichthyidae comprises eight genera of fishes widely distributed across the Neotropical region. In the present study, sequences of the mitochondrial genes 12S rRNA, 16S rRNA, ND4, tRNAHis, and tRNASer were obtained from 28 callichthyid specimens.
Shimabukuro-Dias, C. K., Oliveira, C., Reis, R. E., Foresti, F.   +3 more
openaire   +3 more sources

The pectoral anatomy of selected Ostariophysi. II. The Cypriniformes and siluriformes

Journal of Morphology, 1976
AbstractThe pectoral myology and osteology of the cyprinoids Notemigonus crysoleucas, the golden shiner, and Catostomus commersonnii, the common white sucker, resemble those of generalized, lower teleosts in structure and function, except in features related to the manipulation of the massive fifth ceratobranchial of cyprinoids by muscles attaching on ...
openaire   +2 more sources