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Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups

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By: Duncan, Wallice Luiz Paxiúba - Silva, Maria Isabel da - Fernandes, Marisa Narciso

Type: Article

In: Sociedade Brasileira de Ictiologia

Date: 2015-03-01

Publication Info: Sociedade Brasileira de Ictiologia

Subjects: Foetus Gill morphology hypoxia tolerance potamotrygonid respiratory area
Record of the freshwater stingrays Potamotrygon brachyura and P. motoro (Chondrichthyes, Potamotrygonidae) in the lower Uruguay river, South America

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By: Oddone, María Cristina - Velasco, Gonzalo - Charvet-Almeida, Patrícia

Type: Article

In: Instituto Nacional de Pesquisas da Amazônia

Date: 2012-06-01

Publication Info: Instituto Nacional de Pesquisas da Amazônia

Subjects: matrotrophy Nuevo Berlín Paysandú potamotrygonid Potamotrygonidae