Schmitz A, Perry S F
Institut für Zoologie, Rheinische Friedrich-Wilhelms-Universität Bonn, Poppelsdorfer Schloss, 53115, Bonn, Germany.
Arthropod Struct Dev. 2000 Jan;29(1):3-12. doi: 10.1016/s1467-8039(00)00008-6.
The book-lungs and the tracheal systems of two species of jumping spider, Salticus scenicus and Euophrys lanigera, were investigated using gross anatomical, light and electron microscopic methods. Both species possess well-developed book-lungs of similar size and tracheal systems with a basically similar branching pattern. The tracheal spiracle opens into a single atrium, where it gives rise to four thick 'tube tracheae', from which small secondary tube tracheae originate in groups. The secondary tracheae (diameter 1-5 mum) run parallel, without further branching, into the prosoma. In the opisthosoma, they lie ventrolaterally, where they contact muscles and internal organs. In the prosoma, the secondary tracheae may penetrate the gut epithelium and central nervous tissue. The structure of the tracheal walls is very similar to that of insects, consisting of a striated inner cuticular layer with taenidial structures and a surrounding outer hypodermal layer. The wall thickness appears similar in all secondary tracheae, indicating that lateral gas diffusion may be possible through the walls of all small tube tracheae.
采用大体解剖、光学显微镜和电子显微镜方法，对两种跳蛛（孔雀跳蛛和毛腿蛛）的书肺和气管系统进行了研究。这两个物种都拥有发育良好、大小相似的书肺以及分支模式基本相似的气管系统。气管气门开口于单个心房，在此处产生四条粗大的“管状气管”，从中成组地发出细小的次级管状气管。次级气管（直径1 - 5微米）平行延伸，不再进一步分支，进入前体部。在腹部，它们位于腹外侧，与肌肉和内脏器官接触。在前体部，次级气管可能穿透肠上皮和中枢神经组织。气管壁的结构与昆虫的非常相似，由具有环纹结构的横纹状内表皮层和周围的外表皮下层组成。所有次级气管的壁厚似乎相似，这表明侧向气体扩散可能通过所有小管状气管的壁进行。
