The Pearl Stingray Potamotrygon jabuti, where 'jabuti' is a local word for the species meaning 'Tortoise', a reference to the appearance of the adults, which have a torroiseshell patternation and a tendency to arch their backs. In the aquarium trade the species is marketed as the 'Pearl Freshwater Stingray'. The species was found in the middle and upper Rio Tapajós waterway as well as numerous smaller tributaries, being partucularly abundant in the Rio Jamanxim.