Fish

Barreleye

Macropinna microstoma

PacificAtlanticIndianSouthernArctic A single ocean

North Pacific, from the Bering Sea to Japan and Baja California

Depth

600 to 800 m

Size

About 15 cm

Diet

Small animals, sometimes stolen from siphonophores

Zone

Twilight zone · 200 – 1,000 m

Key facts

• Its head is a transparent, fluid-filled dome.
• Its green tubular eyes, under this dome, rotate to look upward or forward.
• The two dots above its mouth are not eyes: they are its nostrils.

Verified sources

1. MBARI - Barreleye fish with transparent head
2. FishBase, Macropinna microstoma

In the game: To observe

In the same zone

Vampire squidVampyroteuthis infernalis Giant siphonophorePraya dubia Comb jellyBeroe sp. Giant squidArchiteuthis dux Bluntnose sixgill sharkHexanchus griseus Humboldt squidDosidicus gigas