O Jelly Fish Dancing in the night Their tentacles long and sheer…… Beauty in the deep ~by Molly Cooper This beautiful, big medusa, seen during Dive 15 of the expedition, belongs to the genus Cyanea, which is a group of scyphozoan jellyfishes well-known for their tendency to “bloom” and occur in large numbers in surface waters. They can also be a major food item for leatherback turtles. For many years it was thought that there were only a few, mostly cosmopolitan species, but we now know that many morphotypes are actually valid species in their own right.