232 ILLINOIS BIOLOGICAL MONOGRAPHS [470 



EXPLANATION OF PLATE 



Figs. 225 to 240. Myxidiwn lieberkiihni. 



Fig. 225. A trophozoite. After Lieberkiihn from Gurley (1894, PI. 43, Fig. la). X330. 



Figs. 226 and 227. Trophozoites. After Biitschli (1881, Figs. 25 and 31). 



Figs. 228 to 230. Stained trophozoites. After Th6lohan (1895, Figs. 44, 46 and 45). X 750. 



Fig. 231. A trophozoite forming daughter individuals by budding. After Cohn (1895 



Fig. 5). 

 Fig. 232. Four figures showing the separation of a bud. After Cohn (1895, Figs. 6a, 6b, 



6d and 6e). 

 Fig. 233. A cross-section of a trophozoite, showing the ectoplasm, mesoplasm and endo- 



plasm. After Cohn (1895, Fig. 2). 

 Fig. 234. A trophozoite. After Laveran and Mesnil (1902, Fig. 3). X500. 

 Fig. 235, A part of a trophozoite. After Laveran and Mesnil (1902, Fig. 3). X800. 

 Figs. 236 and 237. Young trophozoites undergoing division. After Laveran and Mesnil 



(1902, Figs. 4 and 5). XlOOO. 

 Fig. 238. An isolated spore. After Butschli (1881, Fig. 32). X about 2500. 

 Figs. 239 and 240. Fresh and stained spores. After Thelohan (1895, Figs. 47 and 48). 



X1500. 

 Figs. 241 to 251. Myxidium incurvatum. 



Fig. 241. A monosporous trophozoite. After Parisi (1912, Fig. 1). 

 Fig. 242. A spore. After Thdlohan (1895, Fig. 54). X1500. 

 Figs. 243 and 244. Different views of spore. After Parisi (1912, Fig. 1). 

 Fig. 245. A young spore. After Georgevitch (1916, Fig. 11). 

 Figs. 246 to 248. Spores. After Georg6vitch (1916, Figs. 10, 9 and 8). 

 Figs. 249 to 251. Spores. After Davis (1917, Figs. 119 to 121). X1500. 

 Fig. 252. Trophozoite of Myxidium sphaericum. After Thelohan (1895, Fig. 28). X1500. 

 Fig. 253. A spore oi Myxidium histophilum. After Thelohan (1895, Fig. 49). X1500. 

 Fig. 254. A spore of Myxidium sp. After Leydig from Gurley (1894, PI. 47, Fig. 6). 



