224 S. SAGUCHI 



are scattered over the epidermis. They are furnished, at the 

 distal border, with striated cuticle; each stria corresponding 

 with a cilium. With favorable staining the basal corpuscles 

 appear as diplosome- or dumb-bell-shaped granules (figs. 31, 32); 

 one of these granules is situated at the upper border, the other 

 at the lower, of the cuticle; the former is always smaller and 

 more easily decolorized than the latter, so that there often 

 appears a single row of basal corpuscles below the cuticle. The 

 axis of these diplosome-like basal bodies either corresponds with 

 the vertical axis of the cell in question (fig. 32) or is inclined in 

 a determinate direction (fig. 31). When studied in tangential 

 sections, the basal corpuscles form parallel rows and are inclined 

 towards one end of the row (fig. 33). Since the inclination of 

 basal corpuscles occurs only in a determinate direction, it is evi- 

 dent that, when the cell in question is cut parallel to the rows, 

 the feature as represented in figure 31 is produced, and, that, 

 on the other hand, the same holds true for the cell with vertical 

 basal corpuscles in the sections which are cut at right angles to 

 that direction (fig. 32). 



The chondriocontes in the cihated cells are more numerous 

 than in neighboring non-ciliated cells and are collected especially 

 beneath the cuticular border. In case the cilia are localized in 

 a certain circumscribed region, the main mass of the chondrio- 

 contes drifts to that portion, which indicates a close relation 

 between the two (fig. 27). In sublimate preparations, fibers 

 which, arising from the basal corpuscles, pass downwards, can 

 be readily seen (fig. 30); they are not to be identified with the 

 chondriocontes, but must be regarded, from their staining reac- 

 tion and the continuity with basal corpuscles, as rootlets of the 

 cilia. 



8. Tela chorioidea of Amphibia-larvae. The ciliated epithe- 

 lium-cells from this structure (figs. 36-38) carry comparatively 

 thick cuticular borders, which are not homogeneous, but are 

 finely striated in the longitudinal direction. The cilia, which 

 may be located in a circumscribed portion, especially in the 

 middle of the cell-border, pass vertically through the cuticle 

 and are connected with basal corpuscles. The latter are situ- 



