550 DR. F. E. BEDDARD ON 



stvobiln. The neck is at once wider than the scolex. The pro- 

 truded rosteHum has several rows of the usual minute thorn-like 

 spines characteristic of the genus Dvpylidiuni. Therostellum has 

 a three-pointed appearance, which will be obvious from the 

 drawing, the narrowest part being the apex. 



Text-fie-. 85. 



^^. 



r'^p. 



«-— ™^ 



J 



\ 



\ r 



\r 



Dipylidium dongolense. 



View of entire worm, magnified. 



f. Extruded cirrus, r. Eostellum. 



I believe that there are four rows of spines upon the rostellum. 

 The four suckers are not very large. The shape of the terminal 

 segment of the body seems to me to prove that the specimen 

 which I here figure is a complete individual with no posterior 

 segments shed. It will be noticed that the proglottids are 

 nowhere longer than broad, and that they overlap laterally. The 

 segmentation of this species is thus very different from that of 



