824 



DR. F. E. BEDDARD ON A 



believed to be (though perhaps hardly noAv) in certain other tape- 

 worms. Or, on the contrarj^, we may have here a feebly developed 

 head like that of Ligula. But the great breadth of the body of 

 the present worm is not perhaps in favour of such a supposition. 

 Had there been a very narrow anterior neck, some suggestion of 

 this kind might have been put forward. Anyhow, the general 

 characters of the anterior region of the body of this Cestode are 

 as described above. We shall recur to their more minute anatomy 



Text-%. 113. 



The upper figure represents the entire asexual foim of Tlrocystidiiim gemmiparwm 

 enlarged by about one-third. The lower figure is the posterior end of the same 

 individual more magnified. For explanation see text. 



later. From this point to the extreme posterior end are very 

 many proglottids. They are very short and wide, and do not 

 appear to differ very appreciably in length in difterent regions of 

 the body. The greatest diameter is something like 4 mm. This 

 is at and towards the posterior end of the body. Quite anteriorly, 

 the diameter is not more than 2 '5 mm. The length of the entire 

 worm is about 80 mm. ; the small posterior bladder is 3 mm, long 



