268 



THE ANIMAL PARASITES OF MAN 



...-Vo. 



reaches to the centre of the ventral sucker. Ovary transversely oval 

 in front of the testes. Vitellaria commence about half-way between 

 the ventral sucker and ovary and extend to the posterior end. Eggs 

 numerous, 92 //, to 114^ by 53 //, to 82^. 



Average. 99'5/i by 56/4. 



Habitat. Gut of man (Filipinos), 

 Philippine Islands. 



Echinostoma malayanum, 



Lei per, 1911. 



Twelve millimetres long, 3 mm. 

 broad, 1*3 mm. thick. Ends bluntly 

 rounded. At the anterior end a 

 ventral furrow 7 on either side, one- 

 third the width of the body, 

 marking off the circum-oral collar. 

 Along its edge is a row of forty- 

 three spines extending across the 

 middle line dorsally but not ven- 

 trally. The spines vary in size from 



-C.ex. 



FIG. 168. Echinostoma ilocanum. Vo. 

 oral sucker ; Ph., pharynx ; Cirre, cirrus 

 V.v., ventral sucker; #., uterus; G.c. 

 ovary ; Ov., shell gland ; 71, testes 

 7!flf.,vitellarium ; C.ex., excretory vesicle. 

 (After Brumpt.) 



FIG. 169. Echinostoma ilocanum^ 

 Garrison, 1908 : head end showing collar 

 of spines, ventral view. (After Leiper.) 



0*07 mm. in length (ventrally) to 0*05 to 0*016 mm. (dorsally). Cuticular 

 spines also exist on the ventral side as far back as posterior end of 

 body, but dorsally limited to a triangular area ending in front of the 

 ventral sucker. Oral sucker 0*07 mm. thick, occupying the middle 



