214 ILLINOIS BIOLOGICAL MONOGRAPHS [452 



• EXPLANATION OF PLATE 



Fig. 2L A sporulating trophozoite of Ceratomyxa arcuata. After Parisi (1912, Fig. 6a). 

 Fig. 22. A spore of Ceratomyxa arcuata treated with KOH. After Th6lohan (1895, Fig. 19). 



X1500. 

 Figs. 23 and 24. Ceratomyxa sphaendosa. After Thdlohan. 

 Fig. 23. A part of the tropzoite (1895, Fig. 2). X750. 

 Fig. 24. A fresh spore (1895, Fig. 3). X750. 



Fig. 25. A fresh spore of Ceratomyxa globulifera. After Th^lohan (1895, Fig. 43). X 1500. 

 Fig. 26. An adult trophozoite of Ceratomyxa appendiculata. After Thfilohan (1895, Fig. 4) . 



X about 400. 

 Fig. 27. A spore of Ceratomyxa truncata. After Th^lohan (1895, Fig. 51). X1500. 

 Fig. 28. A spoK oi Ceratomyxa reticularis. After Th61ohan (1895, Fig. 27). X1500. 

 Fig. 29. A siporeoi Ceratomyxa inaequclis. After Doflein (1898, Fig. 10). X1250. 

 Figs. 30 and 31. Ceratomyxa linospora. After Doflem (1898). X about 1900. 

 Fig. 30. A spore (1898, Fig. 39). 

 Fig. 31. A trophozoite with spores (1898, Fig. 43). 

 Figs. 32 and 33. Ceratomyxa ramosa. After Awerinzew (1908). 

 Fig. 32. A trophozoite (1908, PI. 2, Fig. 20). Zeiss obj. D and comp. oc. 4. 

 Fig. 33. A spore (1908, PI. 2, Fig. 19). Zeiss obj. E and comp. oc. 4. 



