72 Reproduction and Life-Cycles 



Fig. 2. 14. A, B. Soniatella and reproduclion by budding in Colacium 

 vesiculosum (after Johnson); A, xl840; B, xl380. C-E. Metamorphosis of flag- 

 ellate into amoeboid stage in Tetramitus rostratus; x2080 (after Bunting). 



F, G. Somatella and formation of bud in Tritrichomonas aiignsta; F, x2100; 



G, xl200 (after Kofoid and Swezy). H-J. Gigmitomonas Jierculea, flagellate 

 stage (H), xlOOO; uninucleate amoeboid stage (I), x385; multinucleate amoe- 

 boid stage (J), xl35; diagrammatic (after Kirby). Key: c, chromatophore; cr, 

 crcsta; r, rhizostyle; t, trailing flagellum. 



