250 



PLATHEOIIXTHES 



r/' a 



Fig. 

 rlum, lef 

 Juct; <//, 



__,.— Proglottid of Bothrioccphalus lafiis (after Sommer"). Right only yit( 

 "t only testes, sliown. ch. cirrus sliealti opening witli tlie vagina; dg. vitel 



vile'llariunv, /;, testes; od. oviduct; in\ ovary; sd, sliell gland; », uterus; 



d. vas deferens l,dark-lined) ; ti', excretory canal. 



line 

 va. 



Fio. 22S. — Proglolliil of Tiriiia saiihiatii, near maturity (after Sommer). cl\ 

 cirrus sheath; dl, \"ilcllariuni ; L\ genital |n")re; A^, ner\'c cord; N('f>li, excretory canal; 

 ct', oyary; rs, receptaculuni seniinis; sdr, sliell gland ; /, testes; 11, uterus; vd, vas deferens. 



