Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A small, deep-sea osmeriform fish of the family Opisthoproctidae, with barrel-shaped, tubular eyes which are generally directed upwards to detect the silhouettes of available prey.

Etymologies

barrel +‎ eye (Wiktionary)

Examples

  • Using remotely piloted robots operating 2,600 feet deep, researchers from the Monterey Bay Aquarium Research Institute discovered two surprising aspects of the "barreleye" fish named Macropinna microstoma.

    TierneyLab

  • Using remotely piloted robots operating 2,600 feet deep, discovered two surprising aspects of the "barreleye" fish named Macropinna microstoma.

    TierneyLab

  • "barreleye" fish Macropinna microstoma was first described in 1939, marine biologists have known that its tubular eyes are very good at collecting light.

    Spero News

  • This is the Pacific barreleye fish (Macropinna microstoma), and as you can see, it has a see-through head.

    Archive 2009-02-01

  • But the barreleye fish for its tubular, or barrel-shaped, eyes lost its eyelids even as its eyes were bulking up and becoming more powerful.

    Rambles at starchamber.com » Blog Archive » Fish shows the value of keeping a clear head

  • We see the barreleye fish, whose eyes extend from its head on tubes, Anableps anableps, a fish with four eyes, and the mantis fish whose color vision is so acute, Dr. Knowlton writes, that it makes what we see look like it is "practically in black and white."

    NYT > Home Page

  • The barreleye fish eats jellyfish and has rotating eyes within its transparent head to protect them from stings.

    Spero News

  • However, Robison and Reisenbichler were extremely fortunate -- they were able to bring a net-caught barreleye to the surface alive, where it survived for several hours in a ship-board aquarium.

    Spero News

  • The barreleye fish, or Macropinna microstoma, has extremely light-sensitive eyes that can rotate within a transparent, fluid-filled shield on its head.

    Spero News

  • This face-on view of a barreleye shows its transparent shield lit up by the lights of MBARI's remotely operated vehicle Tiburon.

    Spero News

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