88 DISEASES OF THE DIGESTIVE APPARATUS 



merits are rounded at the corners and are the shape of a cucumber, hence 

 the name, and have a small sexual orifice at each end. The individual 

 sections are about 8 to 10 mm. long and 3 mm. wide. These segments are 

 easily detachable, and are reddish-pink in color. This coloration is due 



Fig. 45. — Tirnia coenurus. 



to the color of the shell of the egg. The uterus is irregular, with double- 

 shelled, rounded eggs, six to fifteen massed together in elongated cocoons. 

 The primary stage of this taenia which is very common in the dog, is in 

 the abdominal cavity of the dog-louse (trichodectes canis) (Metchnikoff) 



