…There are plates with rows of small holes and plates without holes, and two rows of the same structure join together, so the shell appears to be arranged in 10 radial rows. The rows of bone plates with holes are called ampullae (tubular foot bands), and the rows of bone plates without holes are called interampullae (tubular foot bands). The ampullae and interampullae are arranged alternately. … *Some of the terminology that refers to the "interpeduncular zone" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…骨板には小孔が並んでいる板と孔のない板とがあり,同じ構造の2列が相接するので,殻全体は放射状に10列に並んでいるように見える。孔のある骨板の列を歩帯(管足帯),孔のない骨板の列を間(かん)歩帯(管足間帯)という。そして歩帯と間歩帯とは交互に配列している。… ※「管足間帯」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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