SOME MAMMALIAN TAPEWORMS. 



Text-fig. 153. 



643 



^s 



/ 1 



Sp. 



J,!^ *«.u'»;^*l^X 



** ' >!>' Ill II 



'H,, 



ft- » fe 



l/'a. 



,\V1* 



mvi' 



.\*\^ 



,(il\v «> V ^^ 





&% 

 «*«> 



• A.* 



Sp. 



Bertiella cercopitlieci. 



Sections through sperm-duct and vagina at three points near to their external 



orifices, to illustrate relative position and structure. 



C. Cirrus. Sp. Sperm-duct. Va. Vagina. 



