Pelagic Stingray, Pelagischer Stechrochen (Pteroplatytrygon violacea, syn. Dasyatis violacea).
Zoo-Aquarium Berlin 27th January 2011.
Copyright by Klaus Rudloff, Berlin

The pelagic stingray (Pteroplatytrygon violacea) is a species of stingray in the family Dasyatidae. It is characterized by the wedge-like shape of its pectoral fin disc, which is much wider than long, as well as by the pointed teeth in both sexes, whip-like tail with extremely long tail spine, and uniform violet to blue-green coloration. The distribution of the pelagic stingray extends nearly worldwide in tropical to warm-temperate pelagic waters.