Which are the biggest species of jellyfish?

The Lion's Mane jellyfish is known as the Hair Jelly or the Giant jellyfish. This jellyfish is found in the cold subarctic waters of the Northern Pacific, and Arctic Oceans. These jellies have tentacles that resemble a lion’s mane. Nomura’s jellies have eight arms at the edges of the bell, and they are slightly more significant than the height of the average man. The Stygiomedusa Gigantea species of jellyfish are found in the deep sea.

These jellies have an umbrella-shaped bell that can measure up to three feet in diameter and four arms that resemble paddles which can grow up to thirty-two feet long. They use their arms to capture prey.