Raspy river stingray | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Chondrichthyes |
Subclass: | Elasmobranchii |
Superorder: | Batoidea |
Order: | Myliobatiformes |
Family: | Potamotrygonidae |
Genus: | Potamotrygon |
Species: | P. scobina
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Binomial name | |
Potamotrygon scobina
Garman, 1913
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The raspy river stingray, mosaic stingray or arraia (Potamotrygon scobina) is a species of freshwater fish in the family Potamotrygonidae. This stingray is endemic to the Amazon basin in Brazil, [1] where known from the Amazon– Pará River ( Belém to near the confluence with the Putumayo River), the Madeira River basin, Uatumã River and lower Tocantins River. [2]
It reaches up to 69.1 cm (2.27 ft) in disc width and 132.5 cm (4.35 ft) in total length. [1] It is fairly common, but threatened by habitat loss. [1] It is part of a group consisting of five allopatric Amazonian stingrays, the others being P. adamastor ( Uraricoera River), P. amazona ( Juruá, Jutaí and Rio Negro), P. garmani (mid to upper Tocantins River) and P. limai ( Jamari River). [2] These all have three angular cartilages (as opposed to the one or two seen in other species in the genus). [2]