Purple anemone next to what appears to be an eye of a super-camouflaged fish.
Or perhaps just some weird reflective property of a rock.
Image ID: expl6128, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photo Date: 2011 July 22
Credit: NOAA Okeanos Explorer Program, Galapagos Rift Expedition 2011
• High Resolution Photo Available