Researchers solve mystery of deep-sea fish with tubular eyes and transparent head • MBARI

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. 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.

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Researchers solve mystery of deep-sea fish with tubular eyes and transparent head • MBARI, fish

Macropinna microstoma: A deep-sea fish with a transparent head and tubular eyes

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Barreleye Fish (Macropinna microstoma)

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Researchers solve mystery of deep-sea fish with tubular eyes and transparent head • MBARI