148 
PARASITOLOGY. 
~c 
Fig. 56—UNcINaRIA CANINA, natural size. 
a, Male. 
b, Female. 
Fig. 57—Caudal extremity of the male, magnified 350 diameters. 
a, Spiculae. 
b, Ribs of caudal pouch. 
c, Web of caudal pouch. 
d. Posterior part of body. 
