Do you see it's "forehead?" It is a crystal clear "bubble," much like the cockpits of many helicopters! Insane! You can see right into it's brain! Researchers have catalogued this fish but had never noticed the clear dome, due to the poor state of the specimens brought up in fishing nets.
Inside the fish windshield, rounded lenses that top the tubular eyes shine green in the photographer's light. (Two dots over the mouth are not eyes but olfactory structures.) Seeing the fish alive finally solved the question of how they cope with the restricted vision of the tubular eyes. The eyes can move to look overhead or forward. - ( Susan Milius - Science News )
Scientists from the Monterey Bay Aquarium Research Institute have used a remotely operated vehicle to investigate living specimens and capture the image above and movie below. Amazing. The wonders of nature will never cease.