Spotting

Jason, thanks for the information. Not sure if you might have noticed or not, but on the underside of these "discs" are "feelers" that move and they seem to help them move through the water. We also saw lots of jellyfish but didn't see anything inside the goo of them. Not sure if that information can help us id these things. They are very cool both in anatomy, but also very colorful. Hard to believe that we swim with these things and come so close! Thanks again for your post.