ANIMAL PARASITIC INFECTIONS 453 
Buchanan ! has also investigated the condition of wild game in the Rukwa 
Valley in the Ufipa district of Tanganyika Territory, badly infected with Glos- 
sina morsitans. Of the nineteen varieties of game examined, only the following 
were found to be infected with trypanosomes: water buck, impala, topi, zebra, 
eland, bush buck, giraffe, and puku, (thirty-one animals in all). Over fifty percent 
of the water buck examined harbored trypanosomes, while the other animals 
were seldom infected. He regards the organism as probably 7. brucei, but 
he remarks that while the infection of wild game may be a significant factor 
in the transmission of the disease to human beings, its importance can only 

No. 390. — Photomicrograph, scolex in cyst of Taenia pisiformis, liver of 
topi, Damaliscus corrigum jimela 
be computed when the identity of the trypanosomes and their pathogenic 
relationships are proved. 
Topi (Damaliscus corrigum jimela). In necropsies performed in the Ruindi 
Plains upon twelve topi (the bastard hartebeest), Setaria poultoni Thwaite, 
1928, was found in the peritoneal cavity in nine, while in two no note regard- 
ing the occurrence of this parasite was made. 
In two of the twelve topi there were also found larval forms of a tapeworm 
(Taenia pisiformis) encysted in the liver and omentum. In one of the animals 
the cyst in the liver measured about | cm. in diameter, with four very slightly 
smaller adventitious cysts in the mesentery. In the second animal several 
1 Buchanan: Jour. Trop. Med. and Hyg. (1929), XXXII, 330. 
