263] STUDIES ON MYXOSPORIDIA—KUDO 25 



Don (to Black Sea) : Myxobolus sp. Gurley 

 Locality unknown : Zschokkella nova Klokacewa 



Myxobolus magnus Awerinzew 



Myxobolus carassfi Klokacewa 



Henneguya kolesnikovi (Gurley) Labbe 



B. Myxosporidia of marine fish from Arctic Ocean 

 Murman coast: Ceraiomyxa ramosa Awerinzew 



Ceratomyxa drepanopsettae Awerinzew 

 Myxidium sp. Awerinzew 

 Leptotheca sp. Awerinzew 

 Chloromyxum sp. Awerinzew 



B. DISTRIBUTION OF MYXOSPORIDIA IN ANIMALS 



The number of host species that harbor Myxosporidia is 237, as will be 

 seen from List III. 



Thotwo incompletely studied forms are found in Annelida and Insecta, 

 Myxosporidia are the parasites of Vertebrata, especially of Pisces, only few 

 being found infecting Amphibia and Reptilia. They are distributed among 

 these groups of animals as follows: 



Number of host species 



Annelida 1 



Insecta 1 



Pisces ....223 



Amphibia 8 



Reptilia 4 



Gurley (1894:101-105), Wasielewsky (1896:132-148), Labbe (1899: 

 133-161) and Auerbach (1910:36-45; 1911:471-494) gave lists in which 

 they recorded the names of host species. Wasielewsky arranged the names 

 alphabetically while others listed them according to their systematic order. 

 In the following pages, the writer followed Wasielewsky, i.e., the names of 

 the host species are arranged alphabetically as is supposed to be more 

 convenient in referring to the host than any form presented otherwise. 



LIST III. LIST OF HOST SPECIES 



