Random FactsCuriousOneDecember 20, 2016barreleye, called, cylindrical, deep-sea, Eyes, fact, facts, Fish, green, head, rotate, staycurious, transparentComment There is a deep-sea fish called "Barreleye" that has a transparent head and green cylindrical eyes that can rotate. Random FactsCuriousOneDecember 20, 2016barreleye, called, cylindrical, deep-sea, Eyes, fact, facts, Fish, green, head, rotate, staycurious, transparentComment