246 



ENTOZOA. 



of the dog will probably (on reading the evidence put forth by 

 Leuckart) come to the conclusion that both these worms infest the 



a«1 



^'& 



Fig. h'i:.— Tcenia cllijjtica ; a, up[ier part of the strobile (nat. size) ; b, head (X 25 diam.) ; c, 

 sexually mature proglottis (enlarged) ; d, male reproductive organs (x 60 diam.) — Original. 



human body. I have examined these reputedly distinct forms, and 

 1 find that there are differences of size and outline affecting the 



