32 
Journal of Agricultural Research 
Vol. I, No. i 
ovis) that a definite diagnosis can not be made in individual cases on the 
basis of the number of hooks if this number happens to be 32 or less. 
Apart from the fact that its normal location is in muscle and not on 
serous membranes, Cysticercus ovis may be distinguished from C. tenui- 
collis by its smaller size, the different relationship of the head and neck 
Fig. 9.— Gravid segments of Taenia ovis. Enlarged. Fig. io.— Gravid segments of Taenia kydar 
(Original.) tigena. Enlarged. (Original.) 
to the caudal bladder, the presence of mammillate projections on the 
surface of the caudal bladder instead of transverse corrugations, and the 
different size of the hooks. In C. ienuicollis the head and neck are 
invaginated from one end of the caudal bladder instead of from the side, 
as in C. ovis (PI. II, figs. 1 and 5). The mammillate projections on the 
surface of the caudal bladder of C. ovis (figs. 5 and 11) are very much in 
