1010 MR. F. E. BEDDARD ON 



vagina connected with it. And, moreover, in these younger 

 proglottids its shape cannot be due to any distention by sperm, 

 for the sac was quite empty of sperm. It might be con- 

 venient to restrict the term receptacuhmi serainis for cases 

 of this kind, and not perhaps to name specially the distended 

 region of the vagina in which the sperm is chiefly massed in 

 other foi'ras. 



Text-fig. 212. 



if. 



/ 



Anoplotcenia dasi/uri, transverse section tlirougli ripe proglottid. 

 O., ova ; 77., cavity of uterus. 



The lUerus of this tapeworm is visible very early in the bod}^ 

 in correlation Avith the early development of the organs of I'epro- 



