MASTIGOPHORA 



399 







-J 



Fig. is6. — Trypanosoma rotatorium in blood o£ a frog; drawn from a preparation 

 stained by Romanowsky method after dry fixation. The smaller form is feebly/ 

 stained. 



Fig. 157. — Trypanosoma rotatorium. The various forms which occur in arti- 

 ficial culture. A, Crithidia form; B, trypanosome form; C, spherical form; D and 

 E, club forms; F and G, spirochete forms; H, resting stage; J, resting stage with va- 

 cuole and double nucleus. (After Dojlein.) 



