380 DENDEITIC APPENDAGE OP UROGENITAL PAPILLA 



Fig. 17. Transverse section of lobes through the line pointed to by the letter a in 

 Fig. 3. Zeiss 2.aa. 



F'uj. 18. Longitudinal section of the basal portion of the stalk showing the connec- 

 tion between the dendritic appendage and the bod}' proper. This section 

 is somewhat to one side of the axis of the stalk, and in this particular case 

 the collar-shaped skhi-fold is rather rudimentary, though it is more 

 marked in the median sections than in this. Tlie upper end of the figure 

 is directed towards the tail. Zeiss 2.aa. 



Fiij. 19. Longitudinal section of the stalk showing the sudden replacement of the 

 goblet cells by the glandular cells. Zeiss 2.BB. 



Fig. 20. Transverse section of a lobe of the dendritic appendage in a fully grown 

 individual. Zeiss 2. DD. 



Fig. 21. Highly magnified view of a group of glandular cells. Zeiss 2.F. 



Fig. 22. Highly magnified view of a part of transverse section of a lobe belonging 

 to the dendritic appendage given in Fig. 9. Zeiss 2.F. 



