122 CLASS XIe ORDER II. 
Tent, (tape-worm,) body flat and composed 
of numerous articulations ; head with four orifices 
for suction, a little below the mouth; mouth ter- 
minal, continued by a short tube into two ventral 
canals, and generally crowned with a double se- 
vies of retractile hooks or holders. In man and 
most mammalia, birds, reptiles and fish. 
Furia, (cattle-pest,) body linear, equal, fili- 
form and ciliate each side with a single row of re- 
flected prickles pressed close to the body. In 
the skin of man and horse in Finland. 
ScoLex, body gelatinous, variously shaped, 
broadish on the forepart, and pointed behind ; 
sometimes linear and long, sometimes wrinkled 
and short, round, flexuose or depressed ; head 
protrusile and retractile. In fish. 
Licuia, body linear, equal, long; the fore 
part obtuse, the hind part acute, with an impress- 
ed dorsal suture. In merganser and fish. ; 
