REPRODUCTION 



211 



tion of a second flagellum occurs before division of the cell is evident, 

 a circumstance which evidently led Prowazek (1905) to conclude 

 that this organism is normally bi-flagellated (Fig. 170, p. 368). 





E V\ F 



Fig. 105.— Lophomonas blattarum. A, flagellar tuft and nucleus in calyx in pro- 

 phase of division; B, nucleus with chromosomes leaving calyx; paradesmose on side; 

 C-F, stages in nuclear division in the posterior part of the organism and formation 

 of new calyces and flagellar tufts. X 1850. (After Belaf, Erg. u. Fortschr. der 

 Zool., courtesy of G. Fischer.) 



