OPHIDIAN TAPEWORMS. 



157 



various regions of the body of Ichthyotcenia gabonica is not at all 

 due to the diffei-ences in the mode of preservation and staining. 

 The pieces of worm from which the various sections described 

 above were cut had been treated in precisely the same manner. 



Text-fig. 34. 



A series of sections of IclitliyotcBnia gabonica to show rudimentary uterine pores. 



c. Cortical layer, c.d. Calcareous bodies, m. Medulla, t. Testis. 

 u. Uterus. 



The medullary parenchyma also changes its character in different 

 i-egions of the body. Anteriorly it is dense throughout ; later 

 the cortical region is composed of a lax parenchyma while the 



