SARCODINA, PROTEOMYXA 



421 



Genus Nuclearia Cienkowski. Subspherical, with sharply pointed 

 fine radiating pseudopodia; actively moving forms vary in shape; 

 with or without a mucous envelope; with one or many nuclei; fresh 

 water. 





Fig. 177. a, Arachnula impatiens, X670 (Dobell); b, c, Chalnwjdomyxa 

 montana: b, X270 (Cash); c, X530 (Penard); d, Rhizoplasma kaiseri, 

 (Verworn); e, Biomyxa vagans, X200 (Cash); f, Penardia mutabilis, X200 

 (Cash); g, Hyalodiscus rubicundus, X370 (Penard). 



