The Pacific Barreleyes Fish is a magnificent fish having a transparent head and a normal semi-bloated body. You can see clearly the two green lens-like structures inside the head. The fish was discovered since 1939, pictures were taken in 2004 and the story with the pictures was released on the February 23, 2009. National Geographic news featured the story of the fish.
The fish was discovered off California's central coast by the Monterey Bay Aquarium Research Institute (MBARI).This is the first specimen to be found with it's transparent head intact. What's more surprising and strange about this fish is that the small beads at the front side of its head aren't actually its eyes. The eyes are the big lens-like green structures inside its dome. Scientists discovered that the eyes can pivot, like a birdwatcher pointing binoculars.