Since under the sea never fails to deliver the freaky deaky, this is a video from a diver exploring the waters off Gozo, Malta, who happened to swim across this transparent fish-like creature. In the diver’s own words while I call Ariel pretending to be King Triton, who got hit in the head with a Jet-Ski and has forgotten the secret location of Atlantis:
After some very intense internet sleuthing (I Googled ‘transparent fish’ once), I determined this creature is almost certainly a Salpa maggiore (links to Google image results), a species of planktic tunicate (links to Wikipedia). See? Now that wasn’t so hard, was it? I mean Google exists for a reason, you know. And not just for finding adult material, but mostly.