214 ILLINOIS BIOLOGICAL MONOGRAPHS [4S2 



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 Th^ohan (1895, Fig. 19). 



XlSOO. 

 Figs. 23 and 24. Ceraiomyxa sphaerulosa. After Th6lohan. 

 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 glohulifera. After Th^lohan (1895, Fig. 43). X 1500. 

 Fig. 26. An adult trophozoite of Ceratomyxa appendiculata. After Th^lohan (1895, Fig. 4). 



X about 400. . 

 Fig. 27. A spore oi Ceratomyxa truncata. After Thdlohan (1895, Fig. 51). X1500. 

 Fig. 28. A spore of Ceratomyxa reticidaris. After Thdlohan (1895, Fig. 27). X1500. 

 Fig. 29. A spore oi Ceratomyxa inaequalis. After Doflein (1898, Fig. 10). X1250. 

 Figs. 30 and 31. Ceratomyxa linospora. After Doflein (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, PL 2, Fig. 19). Zeiss obj. E and comp. oc. 4. 



