Potamotrygon henlei (Castelnau, 1855)
Bigtooth river stingray
Potamotrygon henlei
photo by JJPhoto

Family:  Potamotrygonidae (River stingrays), subfamily: Potamotrygoninae
Max. size:  45 cm WD (male/unsexed)
Environment:  benthopelagic; freshwater; pH range: 5.80000019073486 - 7.19999980926514; dH range: 4 - 15
Distribution:  South America: Tocantins River basin (Tocantins and Araguaia rivers).
IUCN Red List Status: Least Concern (LC); Date assessed: 30 April 2004 Ref. (130435)
Threat to humans:  harmless

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