FILARIA BANCROFTI 



39 1 



found they were almost always present in persons suffering from chyluria, elephan- 

 tiasis, and lymphatic enlargements ; he also, in exceptional cases, found them in 

 apparently healthy persons (Filaria sanguinis homints]. Lewis and Manson studied 

 the disease and the filariae of the blood very minutely, and became aware that the 

 filarice were sucked up by mosquitoes with the blood. Manson described the 



FIG. 281. Filaria bancrofti. I, Anterior portion of male; 2, two rows of papillae on 

 head ; 3, papillae of tail of male ; 4, cloaca of male showing tips of spicules and gubernaculum ; 

 5, the spicules and gubernaculum of male. (After Leiper.) 



metamorphoses that take place within the body of the mosquito. The adult 

 female was discovered in Queensland by Bancroft, and soon after Lewis found it 

 in Calcutta ; it was described by Cobbold as F. bancrofti. The male was first 

 seen by Bourne in 1888. 



