Fish that have a transparent head

Barreleye fish (Macropina microstoma) is a deep sea fish that has a transparent head and turbulent eyes. This fish has eyes that are very sensitive to light (covered by a bright green lens) and a fluid-filled protector on the head. His eyes pointed towards the top when the fish was looking for food. Both spots above the fish's mouth are not his eyes. It is a olfactory device called nares.