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River Stingrays

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River stingrays, of the family Potamotrygonidae, are rays that live in rivers and other fresh water. Like all stingrays, they are equipped with poison-coated, serrated stingers and can grow up to 16.5 feet long, making them the largest freshwater fish.

Potamotrygonidae - Wikipedia, the Free Encyclopedia

River stingrays or freshwater stingrays are Neotropical freshwater fishes of the Potamotrygonidae family (order Myliobatiformes).
https://en.wikipedia.org/wiki/Potamotrygonidae
Giant Freshwater Stingray - Wikipedia, the Free Encyclopedia

The giant freshwater stingray is a species of stingray in the family Dasyatidae. It is found in large rivers and estuaries in Indochina and Borneo, though historically it may have been more widely distributed in South and Southeast Asia.
https://en.wikipedia.org/wiki/Giant_freshwater_stingray
Ocellate River Stingray - Wikipedia, the Free Encyclopedia

The ocellate river stingray (Potamotrygon motoro), also known as the peacock-eye stingray, is a potamodromous freshwater ray native to the basins of the Uruguay, Paraná, Orinoco, and Amazon Rivers.
https://en.wikipedia.org/wiki/Ocellate_river_stingray
Short-tailed River Stingray - Wikipedia, the Free Encyclopedia

The short-tailed river stingray (Potamotrygon brachyura) is a species of river stingray (Potamotrygonidae) native to South America; they are known to inhabit Paraguay, Uruguay, and Argentina river basins. Growing to a size of 4.9 ft (1.5 m) and a weight of 459 lb (208 kg), they are hunted as food and for aquaria.
https://en.wikipedia.org/wiki/Short-tailed_river_stingray
Potamotrygon Brachyura (Giant Freshwater Stingray)

The IUCN red list of threatened species information about the giant freshwater stingray.
http://www.iucnredlist.org/details/161687/0
Ocellate River Stingray - Potamotrygon motoro - ARKive

Learn more about the Ocellate river stingray with amazing Ocellate river stingray videos, photos and facts.
http://www.arkive.org/ocellate-river-stingray/potamotrygon-motoro/
Giant Stingrays - National Geographic

Learn all you wanted to know about giant stingrays with pictures, videos, photos, facts, and news from National Geographic.
http://environment.nationalgeographic.com/environment/freshwater/giant-freshwater-stingray
Giant Freshwater Stingray: River Monsters - Animal Planet

The giant stingray can grow to be as long as 16.5 feet and weigh as much as 1,200 pounds -- potentially the largest freshwater fish on the planet.
http://www.animalplanet.com/tv-shows/river-monsters/fish-guide/giant-freshwater-stingray/
Absurd Creature of the Week: The Half-Ton Giant Freshwater Stingray With a 15-Inch Poison Barb

While Southeast Asia's half-ton giant freshwater stingray packs a 15-inch, poison-coated, serrated stinger, it's actually a gentle, inquisitive creature, an endangered titan that researchers are scrambling to understand before humans drive it to extinction.
http://www.wired.com/2013/09/absurd-creature-of-the-week-giant-stingray
Freshwater Stingrays of the Amazon - RayLady

Stingrays belonging to the family Potamotrygonidae have done particularly well in their riverine environment for a variety of reasons. Below is a listing of physiological and morphological attributes that have made a significant contribution to their evolutionary success.
http://www.raylady.com/Potamotrygon/Physiology.html

Links
Media

Potamotrygonidae - Wikipedia, the Free Encyclopedia

River stingrays or freshwater stingrays are Neotropical freshwater fishes of the Potamotrygonidae family (order Myliobatiformes).
https://en.wikipedia.org/wiki/Potamotrygonidae
Giant Freshwater Stingray - Wikipedia, the Free Encyclopedia

The giant freshwater stingray is a species of stingray in the family Dasyatidae. It is found in large rivers and estuaries in Indochina and Borneo, though historically it may have been more widely distributed in South and Southeast Asia.
https://en.wikipedia.org/wiki/Giant_freshwater_stingray
Ocellate River Stingray - Wikipedia, the Free Encyclopedia

The ocellate river stingray (Potamotrygon motoro), also known as the peacock-eye stingray, is a potamodromous freshwater ray native to the basins of the Uruguay, Paraná, Orinoco, and Amazon Rivers.
https://en.wikipedia.org/wiki/Ocellate_river_stingray
Short-tailed River Stingray - Wikipedia, the Free Encyclopedia

The short-tailed river stingray (Potamotrygon brachyura) is a species of river stingray (Potamotrygonidae) native to South America; they are known to inhabit Paraguay, Uruguay, and Argentina river basins. Growing to a size of 4.9 ft (1.5 m) and a weight of 459 lb (208 kg), they are hunted as food and for aquaria.
https://en.wikipedia.org/wiki/Short-tailed_river_stingray
Potamotrygon Brachyura (Giant Freshwater Stingray)

The IUCN red list of threatened species information about the giant freshwater stingray.
http://www.iucnredlist.org/details/161687/0
Ocellate River Stingray - Potamotrygon motoro - ARKive

Learn more about the Ocellate river stingray with amazing Ocellate river stingray videos, photos and facts.
http://www.arkive.org/ocellate-river-stingray/potamotrygon-motoro/
Giant Stingrays - National Geographic

Learn all you wanted to know about giant stingrays with pictures, videos, photos, facts, and news from National Geographic.
http://environment.nationalgeographic.com/environment/freshwater/giant-freshwater-stingray
Giant Freshwater Stingray: River Monsters - Animal Planet

The giant stingray can grow to be as long as 16.5 feet and weigh as much as 1,200 pounds -- potentially the largest freshwater fish on the planet.
http://www.animalplanet.com/tv-shows/river-monsters/fish-guide/giant-freshwater-stingray/
Absurd Creature of the Week: The Half-Ton Giant Freshwater Stingray With a 15-Inch Poison Barb

While Southeast Asia's half-ton giant freshwater stingray packs a 15-inch, poison-coated, serrated stinger, it's actually a gentle, inquisitive creature, an endangered titan that researchers are scrambling to understand before humans drive it to extinction.
http://www.wired.com/2013/09/absurd-creature-of-the-week-giant-stingray
Freshwater Stingrays of the Amazon - RayLady

Stingrays belonging to the family Potamotrygonidae have done particularly well in their riverine environment for a variety of reasons. Below is a listing of physiological and morphological attributes that have made a significant contribution to their evolutionary success.
http://www.raylady.com/Potamotrygon/Physiology.html

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River Stingrays

River stingrays, of the family Potamotrygonidae, are rays that live in rivers and other fresh water. Like all stingrays, they are equipped with poison-coated, serrated stingers and can grow up to 16.5 feet long, making them the largest freshwater fish.

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