On the Classification of the Tracheate Arthropoda.—A Correction
On the Classification of the Tracheate Arthropoda.—A Correction
复制标题
关于气管节肢动物的分类——修正
作者：
R. Pocock
在《动物学报》（1893）第423期，我大胆地提出气管目的新分类，包括在这个标题下的节肢动物，即通常称为多足类和昆虫的节肢动物。所提出的主要变化是取消了多足纲这一名称，因为这表明生物是一种非自然的组合，并将七足纲、合足纲和六足纲合并为一个分支（Opisthogoneata），这是基于身体后端生殖孔的情况。但是，如果我把《分类学》归为这一类，而采用门哥和拉采尔关于孔的位置的论断，那我似乎就犯了错误；因为埃里希·哈泽博士从曼谷写信给我，告诉我说，他虽然费了很大的困难，但通过一系列的横切面，他能够证实格拉西的说法，即狐尾草的生殖孔位于身体的第四个节上。因此，这一属是前生的，就像双足目和保足目一样；但是，它究竟应该与这两个纲并列，还是应该在前肢纲和opisthogone纲之间占据一个独立的位置，这是一个有待将来讨论的问题。
IN No. 423 of the Zoologische Anzeiger (1893) I ventured to propose a new classification of the Tracheata, including under this heading those Arthropoda that are usually known as myriopods and insects. The principal changes suggested were the abolition of the name Myriopoda as indicating an unnatural assemblage of beings and the union of the Chilopoda, Symphyla, and Hexapoda in a division (Opisthogoneata), which was based upon the situation of the generative apertures at the hinder end of the body. But in referring the Symphyla to this category by adopting the assertions of Menge and Latzel respecting the position of the orifices in question, it appears that I fell into error; for Dr. Erich Haase has kindly written to me from Bangkok, with the information that by means of a series of transverse sections he was able, although with considerable difficulty, to confirm Grassi's statement to the effect that the generative apertures in Scolopendrella are situated upon the fourth body-segment. This genus is therefore progoneate, like the Diplopoda and Pauropoda; but whether it should be ranged with these two classes, or occupy an independent position between the Progoneata and Opisthogoneata, is a question for future discussion.