42 SOME MINUTE ANIMAL PARASITES 



tissues (Fig. 8, G) of the sufferer. There is a likeli- 

 hood that a simple division into two of the rounded 

 bodies of Trypanosoma rhodesiense and T. gambiense 

 occurs. But Schizotrypanum seems to have gone a 

 step farther. It has introduced multiple division or 

 schizogony into its life-cycle, and immediately after 

 its recuperative rest, has proceeded thus to reproduce 

 the race with a vigour not displayed by the better- 

 known trypanosomes. It is of interest to note that 

 T. cruzi is transmitted normally by the bug Triatoma 

 (Conorhinus) megistus. 



Such is a short outline of the life-histories of the 

 parasites responsible for human trypanosomiasis. 

 We may now pass to a brief survey of the trypano- 

 somes of other animals and of some other allied 

 parasitic flagellate Protozoa. 



