noun
sea angel; clione
A small, translucent pelagic sea slug of the genus Clione, especially Clione limacina. Often called 'sea angel' in English. In Japanese, クリオネ is the common name.
北海道の流氷の下でクリオネを見ることができる。
You can see sea angels under the drift ice in Hokkaido.
クリオネは小さな翼のような足で泳ぐ。
Sea angels swim with small wing-like feet.