391 



FiLARiA IN Mammals ' 



F. immitis. — Adults found in right ventricle 

 of dog, fox, and wolf. Embryos in blood. 

 Embryos develop in the malpighian tubes of 

 Anophelines. Afterwards they enter the general 

 body cavity and pass towards the labium. 



Dogs in the tropics commonly harbour this 

 filaria. The filariae are most numerous at 

 night. 



F. recondita. — A single female adult has been 

 found in kidney of dog. 



Embryos in Blood. — Embryos develop in Ct. 

 cams (dog-flea), and P. ivvitans (man and 

 dog), ; also in a dog tick. They are found in the 

 intestine and body cavity. The filaria has, how- 

 ever, not been transmitted from infected fleas to 

 healthy dogs. 



F. equina. — Serous cavities, intestines, and 

 liver of horses, donkeys, and mules. 



Embryos in BZooii.— -Appear like F. bancrofti, 

 but smaller. 



F. haemorrhagica. — Male and female live 

 together in tissues of horse and donkey. They 

 form hemispherical tumours the size of a nut be- 

 neath the skin. These burst and discharge blood. 

 Fresh tumours appear in from one to two days. 



F. irritans. — Found in ' simamer sores ' of 

 horses and donkeys. 



' F. evansi. — Lung and mesentery of camel. 

 Embryos in blood. 



F. lacrymalis and F. palpebralis. — About the 

 eyes of horses and cattle. 



F. osleri. — The adults cause broncho-pneu- 

 monia in dogs. 



