ビワコオオナマズびわこおおなまずMeanings1nounLake Biwa catfishusually written using kana aloneA 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び琶わ湖この固こ有ゆう種しゅです。
