A 



p.td 



**" /~y < X ''*-/~x' - v - 



FIG. 6. Protomyxa aurantiaca. 



A, the living organism (plasmodium), showing fine branched pseudo- 

 pods (psd) and several ingested organisms, 

 li, the same, encysted : cy the cell-wall, 

 c, the protoplasm of the encysted form breaking up into spores. 



D, dehiscence of the cyst and emergence of 



E, flagellulre which afterwards become converted into 



F, amcebulse. 



G, amcebulse uniting to form a plasmodium. (After Haeckel.) 



