Results 171 to 180 of about 1,299 (195)
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Zoomorphology, 2019
The mechanosensory system in batoids has a unique sensory canal distribution located on both dorsal and ventral surfaces of the body. Due to the opposite position of eyes and mouth, ventral lateral-line canals are essential to detect and capture prey buried in the substrate.
Akemi Shibuya +2 more
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The mechanosensory system in batoids has a unique sensory canal distribution located on both dorsal and ventral surfaces of the body. Due to the opposite position of eyes and mouth, ventral lateral-line canals are essential to detect and capture prey buried in the substrate.
Akemi Shibuya +2 more
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Journal of morphology, 2017
Clasper gland morphology and development in Potamotrygon magdalenae and its relation with the acquisition of reproductive maturity is described in males of different developmental stages (embryos, neonates, juveniles, and reproductively active and resting adults). The glands are subcutaneous masses in the proximal base of each clasper.
Paola, Anaya-López +1 more
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Clasper gland morphology and development in Potamotrygon magdalenae and its relation with the acquisition of reproductive maturity is described in males of different developmental stages (embryos, neonates, juveniles, and reproductively active and resting adults). The glands are subcutaneous masses in the proximal base of each clasper.
Paola, Anaya-López +1 more
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Molecular Biology, 2015
5S rDNA genes of the stingray Potamotrygon motoro were PCR replicated, purified, cloned and sequenced. Two distinct classes of segments of different sizes were obtained. The smallest, with 342 bp units, was classified as class I, and the largest, with 1900 bp units, was designated as class II.
Cruz, V. P., Oliveira, C., Foresti, F.
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5S rDNA genes of the stingray Potamotrygon motoro were PCR replicated, purified, cloned and sequenced. Two distinct classes of segments of different sizes were obtained. The smallest, with 342 bp units, was classified as class I, and the largest, with 1900 bp units, was designated as class II.
Cruz, V. P., Oliveira, C., Foresti, F.
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Journal of Fish Biology, 2019
Abstract Potamotrygon marquesi, sp. nov., is described and compared with other species of Potamotrygon occurring in the Amazon Basin. The identity of this new species is supported by an extensive external and internal morphological study including coloration pattern, squamation, skeleton and ventral lateral‐line canals. Morphometrics and meristics were
João Paulo Capretz Batista da Silva +1 more
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Abstract Potamotrygon marquesi, sp. nov., is described and compared with other species of Potamotrygon occurring in the Amazon Basin. The identity of this new species is supported by an extensive external and internal morphological study including coloration pattern, squamation, skeleton and ventral lateral‐line canals. Morphometrics and meristics were
João Paulo Capretz Batista da Silva +1 more
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Journal of Morphology
ABSTRACT This work aimed to describe and quantify the tissue components of the digestive tube of the neotropical freshwater stingray, Potamotrygon wallacei . For this, conventional histology and stereological methods were used to estimate tissue volume.
Rubia Neris Machado +1 more
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ABSTRACT This work aimed to describe and quantify the tissue components of the digestive tube of the neotropical freshwater stingray, Potamotrygon wallacei . For this, conventional histology and stereological methods were used to estimate tissue volume.
Rubia Neris Machado +1 more
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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 +1 more
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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 +1 more
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Mitochondrial DNA Part A: DNA Mapping, Sequencing, and Analysis, 2021
Maira A Rizo-Fuentes +2 more
exaly
Maira A Rizo-Fuentes +2 more
exaly
Nota acerca de una especimen del género Potamotrygon (Chondrichthyes, Potamotrygonidae).
1971Its 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.
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Clasper gland morphology and development inPotamotrygon magdalenae(Elasmobranchii: Potamotrygonidae)
Journal of Morphology, 2017Paola Anaya-López +1 more
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