PATHOLOGICAL MAMMALIAN TRYPANOSOMIASIS 159 



Micturition is difficult ; the urine is thick. 



SensibiUty is diminished, paralysis comes on due to softening of 

 the cord. The animal dies in two to eighteen months from the onset. 



The disease is always fatal. 



The condition may be more acute than as described, with death 

 after a few days from the eruption from acute paralysis. 



TRYPANOSOME CAZALBOUI (T. vivax of Bruce). 

 It causes disease in horses and cattle in West Africa. 

 It is carried by Glossinae. 



TRYPANOSOME SOUDANESE (T. evansi of Bruce). 

 It causes tahaga in dromedaries and zausfana in horses. 

 The former disease occurs in the Upper Niger, and the latter in 

 Southern Algeria. 



It is carried by the Tabanidas. 



TRYPANOSOME HIPPICUM. 



It causes murrina amongst mules in North America. 

 It is spread by flies which suck wounds and by coitus. 



Trypanosoma leivisi. Multiplication rosettes, x i,ooo. (After Laveran and Mesnil.) 



TRYPANOSOME CONGOLENSE. 



It causes trypanosomiasis amongst horses, cattle, goats, sheep and 

 dromedaries in French and Belgian Congo, N.E. Rhodesia. 

 It is carried by the Glossinas. 



