goatsbeard brotula
A species of ophidiiform fish, Brotula multibarbata. Typically written in katakana as イタチウオ.
The goatsbeard brotula is a fish that lives in the deep sea.
Kanji form; rarely used in practice.
The name literally means 'weasel fish' (鼬 = weasel, 魚 = fish), likely from its appearance. The exact origin is uncertain.