180 



PARASITOLOGY. 



Fig. 68 



Taenia Alba (from 

 sheep), 

 a, Head. b, Neck. 



c, Mature segments. 



Taenia Alba (Albus — white). 

 Sy7i07iyni. — Moniesia Alba. 



Distribution. — Common in native and range cattle 

 and sheep. 



Description. — This worm 

 is whitish in color, the head 

 small and provided with 

 four sucker discs, which 

 constitute the fixation ap- 

 paratus. The neck is short. 

 The segments are thicker 

 and not so wide as com- 

 pared to the preceding spe- 

 cies. The widest segments 

 reach about one-half inch. 

 The worm, when fully de- 

 veloped, measures from 

 three to seven feet. The ones infesting cattle de- 

 velop larger and longer than those in sheep. 

 Life Cycle. — Same as preceding one. 

 Animals Infested. — The ox and sheep. 

 Parts Infested. — Small intestines. 

 Symptoms. — Usually found in small numbers in 

 cattle and no serious results are credited to them. 

 Outbreaks of Taeniasis among lambs have been 

 reported in which the fatality ran fifteen to twenty 

 percent. If in small numbers in sheep they do not 

 cause serious disturbance. 



Treatment. — Same as for Taenia Expansa. 



Taenia Fimbriata (Fimbria — fringe). 

 Syno7iy7n. — Thy sano soma Actinioides. 

 Distribution. — The most common species of tape- 

 worm infesting sheep. 



