CNIDOSPORIDIA, MYXOSPORIDIA 



467 



Fig. 216. a, Mijxosoma cerebralis, X800 (Plehn); b, Agarella gracilis, 

 X1660 (DunkerlejO; c, d, Thelchanellus notatus, X1530 (Kudo); 

 e, f, Myxobolus pfeifferi (e, section of a cj'st; f, spore treated with 

 Lugol, X1780) (Kej^sselitz); g-i, M. orbiculatus (g, infected muscle, 

 X600; h, a fresh spore; i, Lugol-treated spore, XlOOO) (Kudo); 

 j, k, M. conspicuus, X1530 (Kudo); l-o, M. squamosus (1, a cyst under 

 a scale, X6.5) (Kudo); p, Henneguya psorospermica, X1330 (Thelo- 

 han); q-s, H. exilis, X1530 (Kudo). 



tissue of body and various organs of Barb us harbus, B. fluviatilis, 

 and B. plebejus; tumor up to a diameter of 7 cm; most of infected 

 fish die from the effect (Keysselitz) ; spores 12-12. 5iu by 10-10. 5^. 



M. orbiculatus Kudo (Fig. 216, g-i). In muscle of Notropis gil- 

 berti; spores 9-10^ in diameter by 6.5-7)U thick. 



M. conspicuus K. (Fig. 216, j, k). In corium of head of Moxo- 

 stoma breviceps; tumors 1/2-4 mm. ; spores 9-11. 5/x by 6.5-8m- 



