Results 161 to 170 of about 559 (179)

Phylogeography, genetic diversity and population structure of the freshwater stingray, Paratrygon aiereba (Müller & Henle, 1841) (Myliobatiformes: Potamotrygonidae) in the Colombian Amazon and Orinoco basins

Mitochondrial DNA Part A: DNA Mapping, Sequencing, and Analysis, 2021
Maira A Rizo-Fuentes, Camilo A Correa-Cárdenas, CARLOS A Lasso   +2 more
exaly  

Nota acerca de una especimen del género Potamotrygon (Chondrichthyes, Potamotrygonidae).

1971
Its deal with the study of a sample of "river ray" of the Potamotrygonidae family procured in the Colastiné river (Midle Paraná)showing an external morphology relating it closely to two species of said family: Potamotrygon falkneri Castex y Maciel, 1963 and P. menchacai Martínez Achembach, 1965.
openaire   +2 more sources

Clasper gland morphology and development inPotamotrygon magdalenae(Elasmobranchii: Potamotrygonidae)

Journal of Morphology, 2017
Paola Anaya-López, Martha Patricia Ramírez-Pinilla   +1 more
openaire   +1 more source

Molecular systematics of the freshwater stingrays (myliobatiformes: potamotrygonidae) of the Amazon, Orinoco, Magdalena, Esequibo, Caribbean, and Maracaibo basins (Colombia – Venezuela): evidence from three mitochondrial genes

Mitochondrial DNA Part A: DNA Mapping, Sequencing, and Analysis, 2016
CARLOS A Lasso
exaly  

Comparisons of dental morphology in river stingrays (Chondrichthyes: Potamotrygonidae) with new fossils from the middle Eocene of Peruvian Amazonia rekindle debate on their evolution

Die Naturwissenschaften, 2013
Sylvain Adnet, Rodolfo Salas-Gismondi, Pierre-Olivier Antoine   +2 more
exaly  

Hematological parameters of three freshwater stingray species (Chondrichthyes: Potamotrygonidae) in the middle Rio Negro, Amazonas state

Biochemical Systematics and Ecology, 2016
Adriano Teixeira De Oliveira, Marcio Quara De C Santos, Jackson Pantoja-Lima   +2 more
exaly  

First report and description of a Cyrilia sp. (Apicomplexa: Haemogregarinidae) from a freshwater Cururu Stingray Potamotrygon cf. histrix (Elasmobranchii: Potamotrygonidae), from the Amazon Region, Brazil

Journal of Fish Diseases, 2016
Adriano Teixeira De Oliveira, Lucia Helena O'Dwyer   +1 more
exaly  

Phylogeography and conservation genetics of the Amazonian freshwater stingray Paratrygon aiereba Müller & Henle, 1841 (Chondrichthyes: Potamotrygonidae)

Neotropical Ichthyology, 2012
Renata G Frederico, Izeni Pires Farias, Patricia Charvet   +2 more
exaly  

Preliminary data on the feeding habits of the freshwater stingrays Potamotrygon falkneri and Potamotrygon motoro (Potamotrygonidae) from the Upper Paraná River basin, Brazil

Biota Neotropica, 2007
V S Uieda
exaly  

Bolivian Freshwater Stingrays (Potamotrygonidae): Species Characterization and Taxonomic Knowledge Update

Journal of Ichthyology
H. Torrico-Destre, M. Careaga, F. M. Carvajal-Vallejos   +2 more
openaire   +1 more source