Results 91 to 100 of about 246 (148)

Morphological, cytochemical and ultrastructural aspects of blood cells in freshwater stingray species in the middle Rio Negro basin of Amazonian Brazil. [PDF]

open access: yesSci Rep, 2021
de Oliveira AT   +7 more
europepmc   +1 more source

Anatomical comparison of claspers of freshwater stingrays (Dasyatidae and Potamotrygonidae).

open access: yesJapanese Journal of Ichthyology, 1990
Taniuchi, Toru, Ishihara, Hajime
openaire   +1 more source

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

open access: yes, 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

Landscape dynamics and diversification of the megadiverse South American freshwater fish fauna. [PDF]

open access: yesProc Natl Acad Sci U S A, 2023
Cassemiro FAS   +20 more
europepmc   +1 more source

The evolution of eyespots in skates and rays. [PDF]

open access: yesNat Ecol Evol
Åkerman M   +5 more
europepmc   +1 more source

Repetitive DNAs and Karyotype Evolution in Phyllostomid Bats (Chiroptera: Phyllostomidae). [PDF]

open access: yesBiomolecules
Deon GA   +10 more
europepmc   +1 more source

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