The two green spheres in the video are the lenses of its tubular eyes. Researchers at the monterey bay aquarium research institute recently solved the half century old mystery of a fish with tubular eyes and a transparent head.
The pacific barreleye aka the clear headed fish from blue planet ii blue planet ii is up on netflix and it s getting a second round of viewers.
Macropinna microstoma fish with clear head. Macropinna microstoma is the only species of fish in the genus macropinna belonging to the opisthoproctidae the barreleye family. The pacific barreleye s see through head may seem weird but. The pacific barreleye fish gets its name from large eyes that are literally shaped like barrels topped with beautiful green lenses.
It is recognized for a highly unusual transparent fluid filled dome on its head through which the lenses of its eyes can be seen. Also known as the macropinna microstoma its head is completely transparent filled with fluid. Ever since the barreleye fish macropinna microstoma was first described in 1939 marine biologists have known that it s tubular eyes are very good at collecting light.
With all the wonders of the deep there s one that keeps coming up from this series. This unique creature lives at depths of around 2000 to 2 600 ft. Photographed 2 000 feet deep in the pacific ocean off the california coast the macropinna microstoma known as the barreleye fish is small and dark with large fins a tiny mouth and unusual barrel eyes under a transparent dome.
It s everything we love about the ocean. The pacific barreleye macropinna microstoma sticks with you.