noun
pelican eel
A deep-sea fish (Eurypharynx pelecanoides) known for its large, pelican-like mouth. The name is usually written in katakana.
深海にはフクロウナギという大きな口を持つ魚がいる。
In the deep sea, there is a fish called the pelican eel that has a large mouth.
The Japanese name フクロウナギ literally means 'owl eel', likely from the resemblance of its large mouth to an owl's face. The exact origin is uncertain.