Reproduction and Life-Cycles 55 



species. Parental organelles such as flagella are often inherited equally or 

 unequally by the daughter organisms which later produce enough new 

 structures to complete their equipment. Even the paraglycogen reserves of 

 Stentor coeruleus, normally stored posteriorly, are shifted to the middle 





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Fig. 2. 1. A. Multinucleate stage (schizont) of Ovivora thalassemae; 

 superficial section; xlOOO (after Mackinnon and Ray). B. Schizogony in 

 O. thalassemae; xlOOO (after Mackinnon and Ray). C, D. Plasmotomy in 

 Pelomyxa carolinensis; division into two and three individuals; x40 (after 

 Kudo). E, F. Coronympha octonaria; xl650 (after Kirby); vegetative stage 

 showing nuclei and flagellar groups (E); nuclear groups at end of telo- 

 phase, just before plasmotomy (F), 



