592 



DK. F. E. BEDDARD ON 



separated by a more deeply staining reticulum, which appears to 

 be similar to that of the general parenchyma. This forms a some- 

 what thicker layer enclosing the whole organ. The reticulum of 

 the inner mass of cells is thicker than that of the outer layer, and 

 the nuclei lying at intervals along its strands are very obvious. 

 The reticulum also forms a distinct layer separating the outer from 

 the inner mass of cells. In fact, the whole organ is of an appear- 

 ance more like that represented by Fuhrmann * for Davainea 

 than that by Janicki. This is so, at any rate, as regards the 

 outer layer. The interstitial substance of the inner mass of cells 

 forming the reticulum is represented by Janicki, but as of much 

 greater relative extent than I have found it. 



Text-fig. 78. 



Paruterine organ of Inermicapsifer capensis, showing differentiation between 

 outer and inner coat. 



The species that has just been described cannot, as I think, be 

 referred to any of those enumerated by Janicki. It differs from 

 7. hyracis in the form of the scolex, in the fact that the testes 

 are arranged in two separate masses in each pi'oglottid instead 

 of forming a continuous row. From /. interpositus my species 

 difiers also in the arrangement of the testes, and in the fact that 

 the genital pores of /, interpositus are anterior in position and 

 open into a well-marked cloaca, and also in the fact that the 

 sexual products are ripe earlier in the body in I. interpositus. 



Nor can I. settii be confused with my species. For in the 

 former the body is very short and consists of not more than 

 70 proglottids. Moreover, the excretory vessels do not approach 



* Eev. Zool. Suisse, iv. (1896). 



