The two spots above the fish s mouth that look like eyes are actually olfactory organs called nares similar to human nostrils. A bizarre deep water fish called the barreleye has a transparent head and tubular eyes.
What looks like eyes on the face of the fish are actually its nostrils.
Deep sea fish with clear head. The skin of the barreleye fish s head is completely transparent covering the eyes which are embedded in the gelatinous tissue. Deep sea fish are fish that live in the darkness below the sunlit surface waters that is below the epipelagic or photic zone of the sea the lanternfish is by far the most common deep sea fish. The luminous organs of this fish glow because of the presence of symbiotic bioluminescent bacteria.
First described in 1939 this barreleye has been somewhat of a mystery to science. It gets its name for its large keg shaped eyes. Barreleyes also known as spook fish a name also applied to several species of chimaera are small deep sea argentiniform fish comprising the family opisthoproctidae found in tropical to temperate waters of the atlantic pacific and indian oceans.
This fish might look made for science or just plain made up but it s 100 percent real. The eyes are cased in a transparent domed head which allows the fish to capture maximum light. The deep dwelling barreleye fish is found in the atlantic pacific and indian oceans.
Only about 2 of known marine species inhabit the pelagic. Deep sea fish have adapted to their pitch black environment in a variety of amazing ways. Other deep sea fishes include the flashlight fish cookiecutter shark bristlemouths anglerfish viperfish and some species of eelpout.
A new paper by bruce robison and kim reisenbichler shows that these unusual eyes can rotate within a transparent shield that covers the fish s head. These fish are named because of their barrel shaped tubular eyes which are generally directed upwards to detect the silhouettes of available. This allows the barreleye to peer up at potential prey or focus forward to see what it is eating.
Since the fish s discovery in 1939 biologists have known the eyes were very good at collecting light.