THE H^MOFLAGELLATES. 



189 



kinetic and trophic portions of each having separated to form 

 a kineto- and a tropho-nucleus respectively, the former being, 

 in this case, almost as large as the latter (d, m.li. and m.t.). 



The microgametocyte itself never becomes trypaniform. 

 Its cytoplasm assumes a rounded shape, and the eight double 

 nuclei pass to the periphery and there take up a radial 



Fig. 9. — Development of microgametocyte and male Trjpano- 

 somes from an ookinete of male character. Ht.ii. = male nuclei ; 

 f.n. ■=■ degenerating female nucleus ; m.t. = male troplionucleus ; 

 vi.h. = male kinetonucleus ; 3I.T. ^ Male Trjpanosome j r.b. 

 = residual body. (After Scliaudinn.) 



position (e), the kinetonuclei being nearest the surface. The 

 superficial cytoplasm opposite each forms a little prominence 

 or hillock; these eight elevations grow out (accompanied 

 by the eight nuclei, one to each), become narrower as they 

 lengthen, and gradually assume the tj^pical Trypanosome 

 shape. ^ The kinetonucleus of each is producing, meanwhile, 



' This process, it is interesting to note, takes place in a manner quite 

 comparable to that by which the schizogony of Coccidia is effected. 



