188 



THE TELOSPORASIDA AND THE COCCIDIA PROPER 



conspicuous, uniform, cone-shaped pits 

 about 0. 5/jL in diameter. It is 1. 2 to 1. Sfi 

 thick (mean, 1.5fi); its outer layer is 

 colorless to yellowish, and its inner layer 

 greenish, with two dark refraction lines, 

 one at either surface. There is a conspic- 

 uous micropyle. A micropylar cap is 

 present, sometimes imperceptible, up to 

 6. 5(i wide and 1.6^ high with a mean of 

 4. 1 by 0. 8 )i . An oocyst residuum and 



oocyst polar granule are absent. The 

 sporocysts are spherical to ellipsoidal, 

 and average 8. 1 |j. in diameter or 10. 4 by 

 6. 9 (1 . The presence or absence of a 

 sporocyst residuum was not mentioned. 



Life Cycle : Unknown. 



Pathogenesis : Unknown. 



Fig. 26. Coccidia of sheep. A. Eimeria pallula unspornl^tedoocysU ^'JJ'^^^J'!^ 

 ^ sporulated oocyst. C. E. parva unsporulated oocyst D. E. mnakohlyakn 



o.aeunsporulated oocyst. E. E. '"''"■«'" ""fP^^^l^^'^'^o^^'y^'v ^^,„^;,/;;; 

 porulated oocyst. G. E. arloinni unsporulated oocyst. H £^ ^~°"' 

 Dorulated oocyst. I. £. A'>-«««/osa sporulated oocyst. X 1270. (From 



E. faiirei 



uns 



unsporulated oocyst 



Christensen, 1938) 



