...They are classified into two orders based on the minute symmetrical patterns on the surface of the shell. (1) Centrales The basic shape of the body is like a tea caddy, and the pattern on the surface of the shell is radially symmetrical. They have many plastids, and sexual reproduction is by eggs and swimming sperm. ... *Some of the terminology that mentions "Centrales" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…殻の表面にある微細な相称の模様により次の二つの目に分類される。(1)中心目Centrales 体の基本形は茶筒状で,殻の表面の模様は放射相称である。色素体を多数もち,有性生殖は卵と遊泳性の精子による。… ※「Centrales」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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