284 Trypanosoma Diseases of Domestic Animals in Nyasaland. 



The Host or Eeservoir of T. caprce. 



Up to the present 180 specimens of wild game living in the Nyasaland 

 Sleeping-Sickness Area have been examined. Of these 19, or 105 per cent., 

 harboured T. caprce. The animals were reedbuck, waterbuck, eland, and 

 bushbuck. 



Conclusions. 



1. T. caprce belongs to the same group as T. vivax and T. uniforme, and 

 affects the same animals — cattle, goats, and sheep. Monkeys, dogs, and the 

 smaller laboratory animals are immune. 



2. The carrier is G. morsitans. 



3. The reservoir of the virus is the wild game living in the " fly-country." 



DESCRIPTION OF PLATE. 



Trypanosoma caprce (Kleine). — Large, heavily built body ; posterior extremity swollen, 

 bluntly angular, or rounded ; anterior extremity pointed ; nucleus oval, compact ; 

 micronucleus large, round, situated, as a rule, close to posterior extremity ; undulatiug 

 membrane marked, thrown into bold folds ; flagelluni well marked, free, average 

 ■6 - 5 microns in length, x 2000. 



