74 ILLINOIS BIOLOGICAL MONOGRAPHS [74 



Cysts spherical, 140^. Dehiscence by 7 or 8 short spore-ducts. Spores 

 extruded in chains, dolioform, 6 by 5/t. 



Intestine of Tipula sp., larva. 



Taken in the Valleys of the Vienne and Loire, France and in East 

 Prussia. 



GREGARINA CTENOCEPHALUS Ross 



1909 Gregarina ctenocephalus canis Ross 1909: 359 



1922 Gregarina ctenocephalus Kamm 1922 (this paper) 



Sporonts spherical, no dimensions given. Epimerite pyriform, spores 

 barrel-shaped. No dimensions given. 



Intestine of Ctenocephalus serraticeps. 



Taken at Port Said, Egypt. 



Genus HIRMOCYSTIS Leger 1892: 110, emend. Labbe 1899: 12 

 Associations of from two to twelve sporonts. Epimerite small, cylin- 

 drical papilla. Cyst dehiscence by simple rupture. Spores ovoidal. 



HIRMOCYSTIS VENTRICOSA (Leger) Labbe Type species 



[Figures 8 and 9] 



1892 Eirmocystis ventricosa Leger 1892: 111 



1899 Hirmocystis ventricosa Labbe 1899: 13 



1900 Eirmocystis ventricosa Magalhaes 1900: 39 

 1903 Eirmocystis ventricosa Minchin 1903: 336, 337 

 1911 Hirmocystis ventricosa Wellmer 1911:123 

 1913 Eirmocystis ventricosa Ellis 1913: 264 



Sporonts bi- or rarely tri- associative, obese. Length 180/u, width not 

 given. Ratio LP:TL: :1:3.5. WP:WD: :1:1.5 Protomerite broadly 

 rounded in front, widest in the anterior half, much constricted and cylin- 

 drical in second half. No constriction at septum. Deutomerite broadens 

 appreciably just below septum, widest in anterior third, tapering from 

 thence, ending in a square extremity. Epimerite a small cylindro-conical 

 papilla. Nucleus spherical, one karyosome. 



Cysts spherical, 100/u, dehiscence by simple rupture, spores ovoidal, 

 not fusiform, 9/i by 6/u. 



Intestine of Tipula oleracea and Pachyrhina pratensis, larvae. 



Taken in the Valley of the Loire, France and in East Prussia. 



Tipula sp. is also parasitized by Gregarina longa and Actinocephalus 

 tipulae. 



HIRMOCYSTIS POLYMORPHA (Leger) Labbe 



[Figures 10 and 11] 



1892 Eirmocystis polymorpha Le*ger 1892: 113 



1899 Hirmocystis polymorpha Labbe" 1899: 13 



1903 Eirmocystis polymorpha Minchin 1903: 197,335 



1911 Hirmocystis polymorpha Wellmer 1911:123 



