H. rosai and Heliotrygon gomesi have been sold in the global pet trade for years under trade names. But only recently did scientists—working with local fishers from the Nanay River near Iquitos, Peru (see map)—gather enough specimens to declare the stingrays new species, said study co-author Nathan Lovejoy.
What’s more, the fish are so distinct they constitute a whole new genus, the animal-classification level above “species,” the study says.
The link to National Geographic has a slideshow. Image is snipped from my favorite, an X-rayed ray.