Glossogobius olivaceus; a species of goby
A specific goby species; the name is usually written in katakana.
The Glossogobius olivaceus is a type of goby that lives in brackish waters.
Katakana spelling is standard for this fish name; usually written in kana.
Rare kanji spelling; the first character means 'void' or 'hollow'.
Rare kanji spelling; the first character means 'cave' or 'hollow'.
The name likely derives from うろ (hollow/cave) + はぜ (goby), referring to its habitat or appearance, but the exact origin is uncertain.