#goby by aquanerds on flickr*
The hiding Stingray.
Rare Glowing Flower Hat Jellyfish (Osaka Aquarium, Japan.) 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.
Love those tentacles - jellyfish at Shedd Aquarium
Bell Jellyfish at the Birch Aquarium in La Jolla, California by Peter Csanadi