Entozoa from the Munnan ' '"(.'-. 



507 



nboiit the fiflietli. The ^onitnl pores are Bituatetl near tlie 

 front ot the segment autl irreguhuly alttrriatiiig. There is a 

 niuscuhir geiiiUil atrium (fig. 4, G.A.) into which the cirrus- 

 Fig. 3. 



yroHopylidium areticum ; the scolex and anterior end of the strobila. 



A. Au examplo with moderately contracted neck; Cr., paired glands (P) 



Rt base of rustelliitu. 



B. Au example (leas highly magnified) showing marked contraction of 



the neck. 



sac and vagina open. The cirrus-sac (fig. 4, C.S.) is very 

 long and narrow, measuring U'l?.*} mm. in length and 

 0'03r> nun. in width. It curves forwards i'rom the genital 



