Results 61 to 70 of about 559 (179)
, 2016 O gênero Paratrygon Duméril (1865) até então reconhecido como único gênero monotípico da família Potamotrygonidae, apresenta uma diversidade consideravelmente alta e já apontada previamente por estudos moleculares que indicavam sua única espécie P ...
Loboda, Thiago Silva
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Rhinebothrium jaimei sp. n. (Eucestoda: Rhinebothriidea: Rhinebothriidae): a new species from Neotropical freshwater stingrays (Potamotrygonidae) [PDF]
Folia Parasitologica, 2015 Neotropical freshwater stingrays (Batoidea: Potamotrygonidae) host a diversity of parasites, including some, like their hosts, that are marine-derived. Among the parasites of potamotrygonids, the cestode fauna is the most diverse, with multiple genera having been reported, including genera endemic to the freshwaters of the Neotropics and genera that ...
Fernando P L, Marques, Florian B, Reyda
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The more stirring the better: cichlid fishes associate with foraging potamotrygonid rays
Neotropical IchthyologyOne hunting tactic of freshwater rays (Potamotrygonidae), termed "undulate the disc and stir substrate", is here reported to attract cichlids at two sites in the upper Paraná River.
Domingos Garrone-Neto, Ivan Sazima
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, 2010 A família Potamotrygonidae é um grupo monofilético de raias exclusivo de água doce, ocorrendo na maioria dos grandes rios neotropicais sulamericanos.
João Paulo Capretz Batista da Silva +1 more
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Note about a specimen of the genus Potamotrygon (Chondrichthyes, Potamotrygonidae).
, 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 ...
Martínez Achembach, Guillermo
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, 2009 O continente sul-americano é a única região biogeográfica onde podemos encontrar um grupo estenohalino de elasmobrânquios: as arraias da família Potamotrygonidae.
Ale, Karin Hoch Fehlauer +1 more
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Further comment on the nomenclature of the freshwater stingray Elipesurus spinicauda Schomburgk, 1843 (Chondrichthyes: Potamotrygonidae) [PDF]
Revista Brasileira de Zoologia, 1985 The monotypic genus Elipesurus of neotropical freshwater stingrays, and its type species E. spinicauda, are known from a single specimen which lacked a developed tail and caudal sting. No type or similar specimens exist. The original description and illustration are inaccurate, without diagnostic measurements or characters, excepting those mentioned ...
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Stirring, charging, and picking: hunting tactics of potamotrygonid rays in the upper Paraná River
Neotropical IchthyologyHunting tactics of potamotrygonid freshwater rays remain unreported under natural conditions. Three main foraging tactics of Potamotrygon falkneri and P. motoro are described here based on underwater observations in the upper Paraná River.
Domingos Garrone-Neto, Ivan Sazima
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Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales, 2022 Potamotrygon magdalenae, una raya perteneciente a la familia Potamotrygonidae distribuida en la cuenca del río Magdalena, es considerada de muy alta prioridad para la investigación en el Plan de Acción Nacional para la Conservación y Manejo de Tiburones,
Sergio Antonio Lizcano-Gutiérrez +1 more
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, 2010 The presence of the Plesiotrygon iwamae (Chondrichthyes: Potamotrygonidae) in Colombia is confirmed, based on a male specimen collected in the Amazon River and must be alert about their conservation status in the Amazon region.Se confirma la presencia de
Agudelo Córdoba, Edwin +2 more
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