160 PARASITOLOGY 



proboscis armed with six rows of booklets, wbicb 

 irregularly alternate. Its body presents transverse 

 markings. 



Condition Produced. — Exhaustion, tucked up abdo- 

 men, muscular incoordination, later paralysis, loss of 

 appetite and death. — Parker. 



TREMATODA (Trematodes— flukes). 



The order Trematoda belongs to the class Plat- 

 helmintha and includes a group of worms that are 

 commonly called flukes. They produce a disease 

 called Distomiasis or Distomatosis, which is divided 

 into various forms viz.: 



Hepatic Distomiasis caused by the Distoma 

 Hepaticum, Distoma Americanus, Distom^a Lanceo- 

 lata. 



Pulmonary Distomiasis caused by the Paragoni- 

 mus Westermanii. 



Gastric Distomiasis caused by the Amphistoma 

 Cervi. 



Vascular Distomiasis caused by the Schistosoma 

 Bovis. 



