"A newfound deep-sea relative of the jellyfish flashes glowing red lights on twitching, stinging tentacles to lure fish to their deaths more than a mile below the surface."
"The newfound species is in the genus Erenna, which includes other so-called siphonophores that employ luminescence, which typically is a defensive strategy used to distract a predator."
link for you...
http://www.livescience.com/animalworld/050707_red_light.html