Cuttlebone

Japanese: cuttlebone
Cuttlebone

…In the order Coleoptera, the forewings of the insect class are thickened and become leathery elytra, which are also commonly called cuttlebones. In the cuttlefish of the family Cuttlebone, which belongs to the class Cephalopoda of the phylum Mollusca, there is a calcareous supporting structure that is wrapped in the mantle (body) on the back, called the cuttlebone. The morphology of this structure varies from species to species, and it is an important indicator in taxonomy. …

*Some of the terminology that mentions "cuttlebone" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…また昆虫綱甲虫目は,その前翅(ぜんし)が厚肥し革質の鞘翅(さやばね)となるが,これも俗には甲と呼ばれる。 軟体動物門頭足綱のコウイカ科のイカ類には,背面の外套(胴)に包まれる石灰質の支持構造があり,甲cuttleboneと呼ばれる。この形態は種によって異なり,分類学的に重要な指標となっている。…

※「cuttlebone」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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