This is the rather rare Flower Hat Jellyfish (Olindias formosa). When it's not using its long, pink tipped tentacles, it will curl them upwards towards its pin-striped bell to sit and wait until some kind of prey comes along.
Atolla Jellyfish: wyvillei, also known as Atolla jellyfish or Coronate medusa, is a species of deep-sea crown jellyfish. It lives in oceans around the world. Like many species of mid-water animals, it is deep red in color -