Pseudotrachea

Japanese: 擬気管 - ぎきかん
Pseudotrachea

…The suborder Isopoda includes the Ligididae, which do not have trachea as abdominal limbs, and the Isopidae, Albuginea, Armadillididae, and Albuginea, which have trachea as abdominal limbs. The outer limbs of woodlouses have a large spot-like part called the white body, which is a secondary invagination of the chitinous outer skin into a finely branched pseudotrachea, through which they breathe air. The structure and degree of development of the white body vary depending on the species. …

*Some of the terminology explanations that mention "pseudotracheal tube" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…ワラジムシ亜目には,気管を腹肢にもたないフナムシ科と,気管を腹肢にもつワラジムシ科,ハマワラジムシ科,ダンゴムシ科,ハマダンゴムシ科などを含む。ワラジムシの腹肢の外肢には白色体white bodyと呼ばれる大きな斑紋のように見える部分があるが,これはキチン質の外皮が二次的に内部に陥入して,細かく枝分れした擬気管pseudotracheaに発達しており,これによって空気呼吸をしている。白色体の構造や発達の程度は種類によってそれぞれ異なっている。…

※「擬気管」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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