These look like irridescent neon colored jellyfish.....very pretty. I wonder if they "sting" like some jellyfish do. I used to see jellyfish when I was a kid, and my family was vacationing at Wildwood, New Jersey. We would be splashing around in the ocean....and we would see jellyfish floating by our feet. I remember my brother and I caught a bucketfull of "sand crabs", and we took it back to our hotel room, and hid them. Well....the crabs all died...and they stunk up the whole room....we had to throw them out. My Mom didn't appreciate that episode at all. My brother and I thought it was funny. "LOL"!! We were weird kids! :) Very pretty draw "suntan"!! :)