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The widest freshwater fish and the largest stingray in the world, this species grows up to 2.2 m (7.2 ft) across and can reach up to 300 kg (660 lb) in weight. It has a relatively thin, oval pectoral fin disc that is widest anteriorly, and a sharply pointed snout with a protruding tip. Its tail is thin and whip-like, and lacks fin folds.
Growing to a disc diameter of about 1.9 m (6.2 ft) and a weight of 220 kg (490 lb), with unconfirmed records of even larger specimens, [4] the short-tailed river stingray is the largest freshwater species in its family [3] and one of the heaviest strict freshwater fish in South America, only matched by the arapaima (Arapaima) and piraíba ...
Now, familiarize yourself with the new record-holder in the largest freshwater fish category: a giant stingray that measures about 13 feet long and weighs 660 pounds. Earlier this month, a local ...
Potamotrygon leopoldi is part of a species complex of blackish river rays with contrasting pale spots found in the Tapajós, Xingu and Tocantins basins [3]. River stingrays are almost circular in shape, and range in size from Potamotrygon wallacei, which reaches 31 cm (1.0 ft) in disc width, [9] to the chupare stingray (S. schmardae), which grows up to 2 m (6.6 ft) in disc width. [10]
A fisherman in northern Cambodia hooked what researchers say is the world’s largest freshwater fish — a giant stingray that scientists know relatively little
A fisherman in northern Cambodia hooked what researchers say is the world’s largest freshwater fish — a giant stingray that scientists know relatively little about.
Unlike most South American freshwater stingrays (which usually don't get very big and deadly), this creature is a true monster. This behemoth can nearly glue itself to the bottom of the river, and once Jeremy hooks one, it may be his biggest challenge yet.
The Mekong freshwater stingray was first recognized as a new species by Yasuhiko Taki, who included it as "Dasyatis sp." in his 1968 list of Mekong River fishes from Laos. Taki's specimens were subsequently lost, and this ray was not formally described until 1987, by Tyson Roberts and Jaranthada Karnasuta , in the scientific journal ...