ヨーロッパカワヤツメalso: ヨーロピアンリバーランプリMeanings1nounEuropean river lamprey; Lampetra fluviatilisA species of jawless fish found in European rivers. Used in biological and ecological contexts.ヨーロッパカワヤツメは遡そ河か回かい遊ゆう魚ぎょの一いっ種しゅです。The European river lamprey is a type of anadromous fish.