192 PARASITOLOGY. 
coenurus serialis or multiceps serialis. 
Animals Infested.—The adult infests the dog; the 
larval or cystic form infests the rabbits and rodents. 
Parts Intested—The adult infests the small intes- 
tines; the larval or cystic form the connective tissue. 
Symptoms.—The symptoms of a dog infested by 
the Taenia Serialis are the same as from infestation 
with other tape worms. The same treatment is indi- 
cated. 
Tarnia Canina (Canis—dog). 
Synonym —Taenia Cucumerina. Dipylidium Cani- 
num. 
Distribution.—The most common tapeworm found 
in the middle West; found in European countries. 
a Description.—The head is suc- 
t i ceeded by a narrow, short neck; 
3 it is provided with a club-shaped 
protractile proboscis which is lo- 
cated in the center of the head 
between four sucker discs; this 
proboscis is provided with four 
rows of small hooklets which point 
backward; by means of this pro- 
aaa eas boscis and the sucker discs it is 
AENI H 
a, Head. enabled to hold firmly to the mu- 
b, Neck. cous membrane of the small intes- 
c, Genital pore. : 
d, Ripe segments. tines of its host. The terminal 
segments are about one-sixteenth 
of an inch in width and one half inch long; each seg- 
ment is provided with two genital pores, one located 
in the middle of each lateral side. The adult worm 
measures from five to twelve inches. 
Lite History.—The intermediate host of the Taenia 
