From pink tentacle:
"Red paper lanterns, or aka-chochin, are a familiar sight on the city streets of Japan, where they typically hang at the entrances to cheap pubs, capturing the attention of passersby. The ocean, however, is home to a different variety of red paper lantern — an unusual species of deep-sea jellyfish.
Officially named Pandea rubra, the red paper lantern medusa (aka-chochin kurage) was first discovered in the Bering Sea in 1913, but details about its distribution and life cycle have long remained a mystery. In recent years, the creature has caught the eye of researchers at the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) armed with high-definition video cameras."