STUDIES ON CILIATED CELLS 225 



ated in a layer corresponding to the transparent zone of the 

 Meves preparates, and appear as diplosome- or dumb-bell-shaped 

 granules; the distal granules are always small and readily decolor- 

 ized. The axis of the basal corpuscles is not vertical, but is 

 inclined to one side of the cell (fig. 38). Since, in other cases 

 there are vertical basal corpuscles, it appears probable that here 

 also there may be the same condition as in the ciliated epidermis 

 cells of the same species. The corpuscles are, however, irregu- 

 larly disseminated, without forming rows (fig. 39). In the cyto- 

 plasm there are numerous chondriocontes, which are often ori- 

 ented towards the cilia, a condition which is especially striking 

 in cases when the ciha are localized in a certain portion of bhe 

 cell-border (fig. 36). 



9. The ciliated infundihulum of Ainphibia-larvae. The ciliated 

 cells (fig. 41) are short, cylindrical in shape and covered with 

 thin structureless cuticular borders. The cilia are very long and 

 often adherent into a thick curved bundle, the free end of which 

 is always directed towards the peritoneal canal. The cilia pene- 

 trate the cuticle and come into connection with the basal cor- 

 puscles, which appear, in tangential sections of sublimate-mate- 

 rials, as very small granules scattered irregularly over the cell- 

 surface, with the exception of a narrow peripheral zone. The 

 chondriocontes are mainly accumulated in the distal portion of 

 the cell-body, separated, however, from the layer of basal cor- 

 puscles by the transparent zone. 



10. The pharynx and oesophagus of A^nphibia (figs. Jf2-5o). 

 The cuticular border of the ciliated cells is longitudinally striated, 

 each stria corresponding to a ciliary fiber. Since the basal cor- 

 puscles are very small and set closely side by side, it is difficult, 

 in side view, to distinguish between them (fig. 46) . In tangential 

 sections they form linear series, parallel to one another, the cor- 

 puscles in the same row being united by a slightly staining 

 fiber (figs. 47, 50); the lines lie, in most cases, in a direction at 

 right angles to the longer side of the cell-border. In the trans- 

 parent zone there are fibrils which run from the basal corpuscles 

 downwards and are to be identified with the rootlets of the 

 ciHa. The chondriocontes are mainly arranged vertically and 



