The world is full of surprises and this amazing fish is certainly one of them. This 6 inch wonder is called Macropinna microstoma and features a transparent head!
The fish, discovered alive in the deep water off California's central coast by the Monterey Bay Aquarium Research Institute (MBARI), is the first specimen of its kind to be found with its soft transparent dome intact.
Now, that small orifices in the front of the fish are not its eyes but a smelling organ. The barrel eyes are inside the green barrels and can be rotated inside the transparent head, giving this fish a quite wide visual range.
The barreleye lives about 2000 feet under the surface, where it just stays floating with the eyes looking upward, when a prey arrives they usually have to steal it from siphonophores (jellies that can grow to more than 33 feet). To make this feat it rotate its eyes and goes straight for its prey! Quite amazing.