250 



DK. F. E. BEDDARD ON 



The groove upon the ventral surface of the mature proglottids, 

 referred to above, cannot, as I think, be compared with the 

 ventral and dorsal grooves upon the proglottids of Ptychohothrmm 



Text-fig. 49. 



Transverse section through middle region of proglottid of Solenotcenia viper is, 

 to show the ventral uterine groove. 



d. Diverticulum of uterus containing an embryo (e). The opening into the uterus of 

 the corresponding diverticulum is not shown on the opposite side. sc. Sub- 

 cuticular layer. T. Testis. U. Uterus, v. Vagina. 



