Results 21 to 30 of about 1,110 (197)

Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin. [PDF]

open access: yesJ Fish Biol
Abstract This study aimed to identify geographical distribution patterns of the giant short‐tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays were based on fishers' knowledge accessed by interviews through expeditions in Brazil, Argentina and ...
Pereira DAS, Reis RE, Fontoura NF.
europepmc   +2 more sources

RETRACTION: Aerial imagery reveals abnormal stingrays, Taeniura lymma (Myliobatiformes: Dasyatidae), in the central Red Sea. [PDF]

open access: yesEcol Evol
Abstract RETRACTION: I.A. Ciocănaru, B.O. Nieuwenhuis, R.L. Ostrovski, J. Cochran, and B.H. Jones, “Aerial Imagery Reveals Abnormal Stingrays, Taeniura Lymma (Myliobatiformes: Dasyatidae), in the Central Red Sea,” Ecology and Evolution 14, no. 6 (2024): e11399, https://doi.org/10.1002/ece3.11399.
europepmc   +2 more sources

Ecomorphology of the rectal gland of three batoids (Elasmobranchii: Myliobatiformes)

open access: yesZoologischer Anzeiger, 2021
Abstract The rectal gland (RG) is a specialized organ that performs a major role in salt excretion of marine elasmobranch species. We aimed to describe the rectal gland ecomorphology in three stingray species (Hypanus marianae, Hypanus guttatus, and Aetobatus narinari) from benthic and pelagic habitats.
Andressa C.M. de Melo   +6 more
openaire   +3 more sources

Species boundaries in the Himantura uarnak species complex (Myliobatiformes: Dasyatidae) [PDF]

open access: yesMolecular Phylogenetics and Evolution, 2013
Samples of the 'Himantura uarnak' species complex (H. leoparda, H. uarnak, H. undulata under their current definitions), mostly from the Coral Triangle, were analyzed using nuclear markers and mitochondrial DNA sequences. Genotypes at five intron loci showed four reproductively isolated clusters of individuals.
Arlyza, Irma   +5 more
openaire   +4 more sources

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil. [PDF]

open access: yesJ Fish Biol
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Kampfert LEP   +5 more
europepmc   +2 more sources

Reappraisal of the Eocene whiptail stingrays (Myliobatiformes, Dasyatidae) of the Bolca Lagerstätte, Italy [PDF]

open access: yesZoologica Scripta, 2018
AbstractThe Eocene whiptail stingrays of the family Dasyatidae from the Bolca Lagerstätte, NE Italy, are revised herein in detail. The analysis of the anatomical and morphometric features allows us to identify the species “Dasyatis” zigni (Molin, 1861) as a junior synonym of “D.” muricatus (Volta, 1796), and to assign it to the new genus Tethytrygon ...
Giuseppe Marramà   +3 more
openaire   +4 more sources

Comparative anatomy of the extraocular muscles in four Myliobatoidei rays (Batoidea, Myliobatiformes) [PDF]

open access: yesJournal of Anatomy, 2016
AbstractExtraocular muscles are classically grouped as four rectus and two oblique muscles. However, their description and potential associations with species behavior are limited. The objective was to characterize extraocular muscles in four Myliobatoidei rays from diverse habitats with divergent behaviors.
Carlo M, Cunha   +2 more
openaire   +2 more sources

Un nuevo Myliobatiformes (Chondrichthyes, Batoidea) del Mioceno de la provincia de Río Negro, Argentina y una revisión de los Myliobatiformes fósiles de Argentina

open access: yes, 2023
En este trabajo de licenciatura, se analiza una placa dentaria correspondiente a un Myliobatiformes (Chondrichthyes, Batoidea), procedente de la Formación Gran Bajo del Gualicho (Miembro Saladar; Mioceno Inferior alto-Mioceno Medio bajo), en la localidad
De Pasqua, Julieta Jazmín
core   +1 more source

Langhian rays (Chondrichthyes, Batomorphii) from Brielas, Lower Tagus Basin, Portugal

open access: yesGeologica Acta, 2019
The Langhian Vc unit of Brielas section (Caparica road, Almada), in the marine Miocene of the Lower Tagus Basin (West Portugal), is rich in batoid species.
P. FIALHO, A. BALBINO, M.T. ANTUNES
doaj   +3 more sources

First records of Spinetail Devil Ray, Mobula mobular (Bonnaterre, 1788), and Bentfin Devil Ray, M. thurstoni (Lloyd, 1908) (Myliobatiformes, Mobulidae), in French Polynesia [PDF]

open access: yesCheck List
The first confirmed sightings of Spinetail Devil Ray, Mobula mobular (Bonnaterre, 1788), and Bentfin Devil Ray, M. thurstoni (Lloyd, 1908) (Myliobatiformes, Mobulidae), are reported in French Polynesia. An individual of M.
Alice S. Carpentier   +8 more
doaj   +3 more sources

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