MAMMALIAN CESTODES. 



561 



with the longitmliiial muscular layer of the hod^y, which is poste- 

 riorly not thick but quite evident. In comparing the present 

 species with Dipylidium dongolense in the living state, I noted a 

 (lifi'erence in the dispei'sion of the calcareous corpuscles. In both 

 species they were abundant throughout the body generally ; but 

 in the Dijilopi/lld'atm alone did I succeed in detecting any in 

 the scolex. 



Text-fiff. 91. 



Uiplopi/lkUum ffenettee. 



Longitudinal section tlirougli anterior end of bodj-. 



H. Hooks on rostellum. >S'. Sucker. 



The testes of this species are numerous in proportion to the 

 size of the proglottid. They are ripe in the earlier seg- 

 ments, where the ova are not mature, but still attached to the 

 ovaries. In such segments the testes are closely ci^owded 

 together and fill all the available space of the proglottid from 

 one end to the other. They lie, however, within the ovaries, 

 thus occupying the middle of the proglottid. I counted up to 

 twelve or so in a single longitudinal row. The cirrus-sac of 



