275] 



STUDIES ON MYXOSPORIDIA—KUDO 



37 



C. DISTRIBUTION OF MYXOSPORIDIA IN THE ORGANS OF THE HOST 



Altho some species are found in various organs of the host animal, the 

 majority has one or two particular seats of infection. Among the various 

 organs which become infected, the gall-bladder is most frequently infected. 

 The kidney, branchia and urinary bladder have less chances of being 

 parasitized. As to the infection of the reproductive organs of the host, 

 little is known. The male reproductive organ becomes rarely infected, 

 being reported only twice. The female reproductive organ, however, is 

 more frequently infected. The infection of the next generation of the host 

 animal thru the infected ovum which is known to occur in some Micro- 

 sporidian parasites, has not been reported in Myxosporidia as yet. 



LIST IV. ORGANS OF HOST INFECTED BY MYXOSPORIDIA 



I. Pisces 



1) Integument. — Sphaerospora sp. Southwell et Prashad (under the scales) 



Myxobohis sent Southwell et Prashad (fin) 



Myxobolus transovalis Gurley (under the scales) 



Myxoholus imicapsidatus Gurley (head) 



Myxobolus cydoides Gurley (opercle) 



Myxobolus inaequalis Gurley (head) 



Myxobolus sp. Gurley (opercle, head, fin) 



Myxobolus squamae Keysselitz (inner surface of the scales) 



Myxobolus volgensis Reuss (fin) 



Myxobolus permagnus Wegener (operculum) 



Myxobolus aureatus Ward (fin) 



Henneguya brachytira Ward (fin-ray) 



Henneguya linearis (Gurley) Labb6 (membrane lining branchial cavity) 



Henneguya gurleyi Kudo (base of spines of dorsal fin) 



Henneguya strongylura (Gurley) Labbe (cephalic region) 



Lentospora dermatobia Ishii 



2) Connective tissue. — Myxidium anguillae Ishii (subcutaneous) 



Myxobolus fuhrmanni Auerbach (under the oral mucous membrane) 



Myxobolus oviformis Thelohan (subcutaneous) 



Myxobolus lintoni Gurley (subcutaneous) 



Myxobolus oblongus Gurley (chiefly of the head) 



Myxobolus gigas Auerbach (of operculum, sides and fins) 



Myxobolus capsulatus Davis (visceral) 



Henneguya kolesnikovi (Gurley) Labb6 (interstitial) 



Henneguya niisslini Schuberg et Schroder (at the base of dorsal fin) 



Henneguya miyairii Kudo (of the head) 



Gen. et sp. incert. Linton (subcutaneous) 



