ぬまむつ 沼鯥 LinksSentence search for 沼鯥Sentence search for ぬまむつSentence search for ヌマムツKanji details for 沼 and 鯥Edit in JMdict Noun1. Nipponocypris sieboldii (species of cyprinid)Usually written using kana aloneOther formsヌマムツ Discussions Log in to talk about this word.