Which rarely-sighted jelly from the midnight zone snags its food using arms up to 30 feet long instead of stinging tentacles?

Which rarely-sighted jelly from the midnight zone snags its food using arms up to 30 feet long instead of stinging tentacles? The Munchy Nudibranch The Spooky Sea Urchin The Giant Phantom Jelly The Glow-in-the-Dark Octopus