Brama Raii is the scientific name of a species of fish commonly known as the freshwater stingray. If you're in search of synonyms for this term, you may want to consider "potamotrygonidae" or "river stingray", which both refer to the same animal. Another possible synonym is "potoro", which is the name for this type of fish in some South American countries. While the freshwater stingray is not as well-known as some other aquatic species, it is a fascinating creature with unique adaptations that make it a popular choice for aquarium enthusiasts. Whatever you choose to call it, the Brama Raii is definitely a creature worth learning more about.