Pelagia noctiluca is ajellyfish in the family Pelagiidae. It is typically known in English as the mauve stinger, but other common names are purple-striped jelly (causing potential confusion with chrysaora colorata), purple stinger, purple jellyfish, luminous jellyfish and night-light jellyfish. Pelagia noctiluca can be described as a marine organism with the ability to glow in the dark (bioluminescence). It is found worldwide in tropical and warm temperate seas.