"river" in inglés with examples - Collocation dictionary inglés
- The taxonomy of the river stingrays is complex and undescribed species remain.
- Potamotrygon schroederi (Rosette river stingray)
- Potamotrygon constellata (Thorny river stingray)
- Potamotrygon scobina (Raspy river stingray)
- Sand is often recommended for use with certain species, such as the river stingrays of family Potamotrygonidae, which bury themselves in the fine substrate.
- However, this interpretation is controversial, as parasitological evidence suggests that the river stingrays are most closely related to Pacific round rays in the genus Urobatis.
- Short-tailed river stingrays are circular in shape and humped in the back.
- The long-tailed river stingray or antenna ray, Plesiotrygon iwamae, is a species of freshwater stingray in the family Potamotrygonidae.
- The river stingrays, and a number of whiptail stingrays (such as the Niger stingray), are restricted to fresh water.
- The arraia or raspy river stingray (Potamotrygon scobina) is a species of fish in the Potamotrygonidae family.
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