Results 131 to 140 of about 246 (148)

Morphology of the reproductive tract and acquisition of sexual maturity in males of Potamotrygon magdalenae (Elasmobranchii: Potamotrygonidae).

Journal of morphology, 2015
The purpose of this study was to describe the structure of the reproductive tract of males of Potamotrygon magdalenae before, during, and after they acquire sexual maturity, and to establish the first maturity scale for males within the family Potamotrygonidae. The male reproductive tract of P.
Tania Del Mar, Pedreros-Sierra, Martha Patricia, Ramírez-Pinilla   +1 more
openaire   +1 more source

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

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

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 Andres 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, Pierre-Olivier Antoine
exaly  

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

Biochemical Systematics and Ecology, 2016
Marcon J L, Santos M Q C, Jackson Pantoja-Lima   +2 more
exaly  

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

Neotropical Ichthyology, 2012
JOSÉ Alves-Gomes, Izeni Pires Farias, Patricia Charvet   +2 more
exaly  

Potamotrygon boesemani (Chondrichthyes: Myliobatiformes: Potamotrygonidae), a new species of Neotropical freshwater stingray from Surinam

Neotropical Ichthyology, 2008
Ricardo Rosa, Marcelo R DE CARVALHO, Rosa Ricardo S   +2 more
exaly  

A New Species of Tetraphyllidean (Cestoda) from the Largespot River Stingray, Potamotrygon falkneri (Potamotrygonidae: Chondrichthyes), from the Paraná Basin

Journal of Parasitology, 2009
Veronica Ivanov
exaly  

A new species of Neotropical freshwater stingray of the genus Potamotrygon Garman, 1877 from the Río Madrede Díos, Peru (Chondrichthyes: Potamotrygonidae)

Papeis Avulsos De Zoologia, 2011
João Paulo Capretz Batista da Silva, Marcelo R DE CARVALHO   +1 more
exaly