Results 101 to 110 of about 559 (179)

Caracterização e diferenciação morfológica e funcional da placa dentária dos representantes da família Potamotrygonidae (Elasmobranchii: Myliobatiformes) [PDF]

The family Potamotrygonidae consists of a unique group of Neotropical stingrays. It includes two subfamilies composed of a few marine species, and the only well-established lineage of freshwater stingrays.
Lima, Danilo Pinto
core  

FIGURE 16 in Potamotrygon limai, sp. nov., a new species of freshwater stingray from the upper Madeira River system, Amazon basin (Chondrichthyes: Potamotrygonidae)

, 2014
FIGURE 16. Dorsal (A) and ventral (B) views of clasper skeleton of Potamotrygon limai, sp. nov. (MZUSP 104033, adult male, 359 mm DW). Abbreviations: AT: accessory terminal cartilage; AX: axial cartilage; B1: first basal segment; B2: second basal segment;
Fontenelle, João Pedro, De Carvalho, Marcelo R., Da Silva, João Paulo C. B.   +2 more
core   +1 more source

Mitochondrial genetic variation of endemic stingray Potamotrygon magdalenae (Myliobatiformes: Potamotrygonidae) in the middle Magdalena River basin, Colombia

Neotropical Ichthyology
Potamotrygon magdalenae is the only freshwater stingray species reported to be endemic to Colombia, inhabiting the Magdalena-Cauca, San Jorge, Atrato, and Catatumbo River basins.
Carlos Arturo Amado-García, Iván Yesid López-Ardila, Fernando Rondón-González   +2 more
doaj   +1 more source

Erratum. [PDF]

Genet Mol Biol, 2021
europepmc   +1 more source

Filogenia molecular e diversificação das arraias de ferrão de água doce (Família Potamotrygonidae) na América do Sul

, 2013
The network of South American rivers network has experienced deep changes during Late Miocene through Pleistocene, including major marine transgressions, Andean uplift driving drainage changes, and changes in eustatic level.
Ribeiro, Daniel Toffoli
core  

Cleaning interactions between shrimps (palaemonidae) and freshwater stingrays (potamotrygonidae) in the Paraná River, Southeastern Brazil

, 2022
We report the first record of cleaning symbiosis between a river stingray, Potamotrygon falkneri, and a palaemonid shrimp, Macrobrachium jelskii. Shrimps of different sizes were observed cleaning adult stingrays partially buried in sandy substrate and shallow water, during the day in the Parana River, Southeastern Brazil, in four events.
Garrone-Neto, Domingos, Gadig, Otto Bismarck Fazzano, Zuanon, Jansen, Carvalho, Lucélia Nobre   +3 more
openaire   +1 more source

Cytogenetic and molecular characteristics of Potamotrygon motoro and Potamotrygon sp. (Chondrichthyes, Myliobatiformes, Potamotrygonidae) from the Amazon basin: Implications for the taxonomy of the genus. [PDF]

Genet Mol Biol, 2021
Cruz VPD, Nobile MLO, Paim FG, Adachi AMCL, Ribeiro GDS, Ferreira DC, Pansonato-Alves JC, Charvet P, Oliveira C, Oliveira C, Foresti F.   +10 more
europepmc   +1 more source

Venomous Bites, Stings and Poisoning by European Vertebrates as an Overlooked and Emerging Medical Problem: Recognition, Clinical Aspects and Therapeutic Management. [PDF]

Life (Basel), 2023
Paolino G, Di Nicola MR, Avella I, Mercuri SR.   +3 more
europepmc   +1 more source

Utilização da ferramenta de DNA Barcoding para identificação genética de arraias da família Potamotrygonidae garman, 1877 do município de Portel Pará

, 2016
The freshwater stingrays belong to Potamotrygonidae family, are a monophyletic group of elasmobranchs restricted the river basins in neotropical regions composed of a group of very diverse fish in South America present in most tropical river continents ...
VANZELER, Jesiane Teixeira
core  

DNA barcode reveals the illegal trade of rays commercialized in fishmongers in Brazil. [PDF]

Forensic Sci Int Synerg, 2020
Camacho-Oliveira RB, Daneluz CM, do Prado FD, Utsunomia R, Rodrigues CE, Foresti F, Porto-Foresti F.   +6 more
europepmc   +1 more source