noun
Lake Biwa catfish
A species of catfish (Silurus biwaensis) endemic to Lake Biwa in Japan. Used in biological and regional contexts.
ビワコオオナマズは琵琶湖の固有種です。
The Lake Biwa catfish is an endemic species of Lake Biwa.
Standard katakana spelling for this species name.
Kanji spelling; usually written in kana. Rare in practice.
Compound of 琵琶湖 (Biwa-ko, 'Lake Biwa') + 大 (ō, 'large') + 鯰 (namazu, 'catfish'). The name directly describes the fish's habitat and size.