. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. 64 K. OGUMA : do with the hind intestine of the dragonfly, torn off from the more anterior parts and evaginated through the anus. As is generally known, the hind intestine of the dragonfly consists of the ileum and the rectum. In the adult, the ileum is much longer than the rectum and has folded mucous epithelium. On the other hand, the rectum has smooth epithelium, of which the distalmost part adjoining the anus is distinguished from the remaining parts in being composed of smaller cells and has been called the anal piece by some
. Annotationes zoologicae japonenses / Nihon do?butsugaku iho?. 64 K. OGUMA : do with the hind intestine of the dragonfly, torn off from the more anterior parts and evaginated through the anus. As is generally known, the hind intestine of the dragonfly consists of the ileum and the rectum. In the adult, the ileum is much longer than the rectum and has folded mucous epithelium. On the other hand, the rectum has smooth epithelium, of which the distalmost part adjoining the anus is distinguished from the remaining parts in being composed of smaller cells and has been called the anal piece by some authors. The muscular wall of the hind intestine is thickest in the anteriormost parts of the ileum ; it is also thickened at the junction with the rectum where rectal tracheal gills are attached. The hind intestine is invested in its entire length by. Fig. I. Prolapsed hind intestine (HI) in situ. Enlarged. Fig. 2. Median sagittal section' of the same. Fig. 3. Terminal part of the same. a, anal piece; c, chitin intima; dm, duct of Malpighian tubule; i, ileum; m, Malpighiaa tubules; M, muscular layer; r, rectum; rg, rectal gill; t, trachea; tp, tunica propria. Malpighian tubules which open into the anterior end of ileum, making their way through the thickened muscular wall of that part. Now, to obtain an insight into the structure of the pendant organ Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Nihon Do?butsu Gakkai; To?kyo? Do?butsu Gakkai. Tokyo : Societas
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Keywords: ., bookcentury1800, bookcollectionbiod, bookdecade1890, bookyear1897
