1919: 



Govt: The Cercaria of the Japanese Blood Fluke 



498 



Fig. 1. Cercaria of Schisto- 

 soma japonicum, ventral veiw; 

 as, anterior spines; 6, excretory 

 bladder; ht, excretory bladder 

 of tail; eg, cephalic glands; cm, 

 circular muscles; dcg, ducts of 

 cephalic glands; ds, digestive 

 system; exi), excretory pore; f, 

 flame cell; hg, head gland; i, 

 island in excretory bladder; It, 

 lobe of tail; m, mouth; n, nerv- 

 ous system; st, stem of tail; s, 

 ventral sucker. 



exp 



