Jewel Anemones- The modest jewel anemone (Corynactis haddoni) may well be one of the most interesting animal species as it exhibits a high degree of colour variability. Like other anemones, the jewel anemone can reproduce asexually by splitting, which leads to clusters of identically coloured clones, and these patches join up to amazing quilt works of gaudy colours. The jewel anemone does not have long thinning tentacles but short ones, ending in knobs.
Big Yellow Jellyfish – Amazing Pictures - Amazing Travel Pictures with Maps for All Around the World
Hydromedusae-jellyfish members of one class of the Cnidaria ;)