302 



DISEASES DUE TO HELMINTHS 



Anterior extremity of Guinea 

 worm, showing dorsal and ven- 

 tral lips, one lateral and two 

 tubmedian papillre and the 

 lateial line. (After Leuckart.) 



Guinea worm, Dracun- 

 cnhis medinensis. (After 

 Leuckart.) 



Dracuncuhis medinensis. a, anterior ex- 

 tremity seen end on ; O, mouth ; P, 

 papillse ; b, female reduced more than half; 

 c, larvae enlarged. (After Claus.) 



