The transparent head fish

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This bizarre deep-water fish called the Barreleye (Macropinna microstoma) has a transparent head and tubular eyes.It has extremely light-sensitive eyes that can rotate within his transparent, fluid-filled sheild on its head,while the fish's tubular eyes,well inside the head,are capped by bright green lenses. The eyes point upward (as shown here) when the fish is looking for food overhead. They point forward when the fish is feeding. The two spots above the fish's mouth are not eyes they are olfactory organs called nares, which are analogous to human nostrils.