A Deep-Sea Fish With A Transparent Head & Tubular Eyes Has Been Caught On Video!

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MBARI researchers Bruce Robison and Kim Reisenbichler used video taken by unmanned, undersea robots called remotely operated vehicles (ROVs) to study barreleye fish in the deep waters just offshore of Central California.

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At depths of 600 to 800 meters (2,000 to 2,600 feet) below the surface, the ROV cameras typically showed these fish hanging motionless in the water, their eyes glowing a vivid green in the ROV’s bright lights.

The ROV video also revealed a previously undescribed feature of these fish–its eyes are surrounded by a transparent, fluid-filled shield that covers the top of the fish’s head.

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Macropinna microstoma – It is recognized for a highly unusual transparent, fluid-filled dome on its head, through which the lenses of its eyes can be seen.