…A general term for planktonic shellfish belonging to the Cavolinidae family, or one of these. Although they are snail shellfish, they do not roll up, and their thin shells are shaped like a turtle's shell. When alive, they swim with large, flat, wing-like lateral legs on either side, hence the name Cavolinidae or Pteropod. *Some of the terminology that mentions "Cavolinidae" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…カメガイ科Cavolinidaeに属する浮遊性貝類の総称,またはそのうちの1種を指す。巻貝類であるが殻は巻かず,薄い殻がカメの甲のような形をし,生きているときは左右に翼のような平たく大きい側足を出して泳ぐので,そのようすからカメガイ,または翼足類の名がある。… ※「Cavolinidae」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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