246 ILLINOIS BIOLOGICAL MONOGRAPHS [484 



EXPLANATION OF PLATE 



Fig. 448. The branchia of Lucioperca volgensis with cysts of Myxobolus volgensis. After 



Reuss (1906, Fig. 2). X2.25. 

 Fig. 449. A spore of Myxobolus scardinii. After Reuss (1906, Fig. 3). X1500. 

 Fig. 450. Air bladder of Scardinius erythrophtkalmus with the cysts of Myxobolus pkyso- 



philus. After Reuss (1906, Fig. 5). X2. 

 Fig. 451. A spore of Myxobolus physophilus. After Reuss (1906, Fig. 4). X1500. 

 Fig. 452. A sport of Myxobolus macrocapsular is. After Reuss (1906, Fig. 6). X1500. 

 Fig. 453. A spore of Myxobolus sandrae. After Reuss (1906, Fig. 7). X2000. 

 Fig. 454. A spoK ol Myxobolus bramae. After Reuss (1906, Fig. 9). X1500. 

 Fig. 455. A spore ot Myxobolus balleri. After Reuss (1906, Fig. 10). X1500. 

 Fig. 456. A spore of Myxobolus cyprinicola. After Reuss (1906, Fig. 11). X1500. 

 Figs. 457-459. Myxobolus squamae. After Keysselitz (1908a). 

 Fig. 457. A part of the infected scale (1908a, Fig. G.) 

 Fig. 458. A spore treated with Lugol's solution (1908a, PI. 14, Fig. 94). 

 Fig. 459. A stained spore (1908a, PL 14, Fig. 96). 



Figs, 460 and 461'. Spores of Myxobolus cordis. After Keysselitz (1908a). 

 Fig. 460. A spore treated with Lugol's solution (1908a, PI. 16, Fig. 16). 

 Fig. 461. A strained spore (1908a, Fig. B on page 281). 

 Figs. 462 to 464. Spores of Myxobolus tnusculi. After Keysselitz (1908a). 

 Fig. 462. A spore treated with Lugol's solution (1908a, PI. 15, Fig, 13). 

 Fig. 463 and 464. Stained spores (1908a, Figs. D and E on page 286). 

 Fig. 465. Sports oi Myxobolus sp. After Wegener (1910, Fig. 44). X1050. 

 Fig. 466. A sport oi Myxobolus per magnus. After Wegener (1910, Fig. 45). X1050. 

 Fig. 467. Spores of Myxobolus rotundus. After Nemeczek (1911, Figs. 10 and 11). XlOOO. 

 Fig. 468. Spores of Myxobolus minutus. After Nemeczek (1911, Figs. 16 and 17). XlOOO. 

 Figs. 469 and 470. Spores of Myxobolus magnus. After Awerinzew (1913, 76). X about 



340. 

 Figs. 471 to 473. Spores of Myxobolus carassii. After Klokacewa (1914, Fig. 1). X about 



2400. 



