👉 Megalocryptes is a genus in the family Megalocryptidae, which includes the common jellyfish, such as the sea star (Hymenoptera), which are marine animals that live in bodies of water. These jellyfish have a flattened body shape, often with a single large tentacle or mouth opening. They are known for their unique and distinctive appearance, including their bright colors and patterns, which can be used to identify them from other sea creatures.