CNIDOSPORIDIA, ACTINOMYXIDIA 471 



S. stolci C. et M. (Fig. 217, h). Spore spherical; in Clitellis are- 

 narius and Hemituhifex henedii. 



S. gigas Granata (Fig. 217, c). In coelom of Limnodrilus hoff- 

 meisteri. 



Genus Hexactinomyxon Stole. Each of 3 shell-valves prolonged 

 into 2 processes ; spore appears as a 6-armed anchor. 



H. psammorydis S. (Fig. 217, e). In gut-epithelium of Psam- 

 moryctes harhatus; sporoplasm multinucleate. 



Genus Synactinomyxon Stole. Spore with 2 prolonged shell- 

 valves and 1 conical valve. 



S. tuhificis S. (Fig. 217,/, g). In gut-epitheUum of Tubifex tubi- 

 jex. 



Genus Neoactinomyxum Granata. 3 shell-valves without any 

 process, distended to hemisphere. 



N. globosum G. (Fig. 217, h). In gut-epithelium of Limnodrilus 

 udekemianus; spore with numerous sporoplasms. 



Genus Guyenotia Naville. Pansporoblast with 8 spores; spore 

 spherical with 3 shell- valves, each drawn out into digitiform proc- 

 ess posteriorly, longer than diameter of spore; sporoplasm with 

 32 nuclei. 



G. sphaerulosa N. (Fig. 217, i). In gut-epithelium of Tubifex 

 tubifex; spores 15)u in diameter; appendages of mature spore 40iu 

 long. 



References 



AuERBACH, M. 1910 Die Cnidosporidien. Leipzig. 



Caullery, M. and F. Mesnil 1905 Recherches sur les Acti- 



nomyxidies. Arch. f. Protistenk., Vol. 6. 

 Davis, H. S. 1917 The Myxosporidia of the Beaufort region. 



Bull. U.S. Bureau Fish., Vol. 35. 

 Granata, L. 1924 Gh Attinomissidi. Arch. f. Protistenk., Vol. 50. 

 Kudo, R. 1920 Studies on Myxosporidia. lUinois Biol. Monogr., 



Vol. 5. 

 1933 A taxonomic consideration of Myxosporidia. 



Trans. Amer. Micr. Soc, Vol. 52. 



1934 Studies on some protozoan parasites of fishes of 



Illinois. Illinois Biol. Monogr., Vol. 32. 

 Naville, A. 1930 Le cycle chromosomique d'une nouvelle 

 Actinomyxidie : Guyenotia sphaerulosa n.gen., n.sp. Quart. 

 Jour. Micr. Sci., Vol. 73. 



