184 



THE TELOSPORASIDA AND THE COCCIDIA PROPER 



Geographic Distribution : Worldwide. 



Prevalence : This species is fairly 

 common. Christensen (1938a) found it in 

 14% of 100 sheep from Maryland, New 

 York and Wyoming. Jacob (1943) found it 

 in 13% of 100 sheep in Germany. Balozet 

 (1932) found it in 3% of 63 sheep in Tunisia. 

 Svanbaev (1957) found it in 4% of 302 sheep 

 in Kazakhstan. 



Morphology : This species has been 

 described by Spiegl (1925), Balozet (1932) 

 and Christensen (1938a). The oocysts are 

 ellipsoidal, 39 to 54 by 27 to 36 (j. with a 

 mean of 47.0 by 32.0(:i (Christensen) or 

 45.6 by 33.0/1 (Spiegl). Their length- 

 width ratio is 1. 3 to 1. 8 with a mean of 

 1.47. The oocyst wall, as described by 

 Henry (1932), is composed of 3 layers; 

 the outer layer is a transparent, colorless 

 membrane which is very difficult to see; 

 the middle layer is thick, rough, brown, 

 transversely striated, 2.0 to 2. 5/i thick, 

 and somewhat thinner at the micropylar 

 end; the inner layer is colorless, 0.8 to 

 1.0 fi thick. The micropyle is prominent, 

 6 to 10 /I in diameter; it does not extend 

 to the inner layer. The micropylar cap is 

 prominent, transparent, colorless to 

 yellowish-green, crescent-shaped, de- 

 tachable, and 6 to 11 ji wide and 1 to 3j:i 

 high with a mean of 9 by 2 jm . An oocyst 

 polar granule and residuum are absent. 

 The sporocysts are elongate ovoid, 17 to 

 18 by 9 to 13 fi, with a small Stieda body 

 and a sporocyst residuum. The sporo- 

 zoites are wedge-shaped, with several 

 refractile globules. The sporulation time 

 is 3 to 5 days. 



Life Cycle : The life cycle of E. 

 inlricala has not been worked out. As 

 mentioned above, Reichenow (1940) and 

 Becker (1956) considered that the giant 

 schizonts described from sheep under the 

 name E. gilruthi are those oiE. inlricala. 

 According to Kotlan, Pell^rdy and Versenyi 

 (1951), the merozoites of E. inlricala are 

 about 16/i long and bent like a hoe at one 

 end. 



Pathogenesis : Unknown. These 

 oocysts are rarely found in large numbers. 



Epidemiology : Honess (1952) found 

 this species in the Rocky Mountain bighorn 

 sheep, and Wetzel and Enigk (1936) re- 

 ported it from the roe deer in Germany. 



EIMERIA NINAKOHLYAKIMOVAE 

 YAKIMOFF AND RASTEGAIEFF, 

 1930 emend. 



Synonyms : Eimeria galouzoi (pro 

 parte), E. nina-kohl-yakimovi Yakimoff 

 and Rastegaieff, 1930. 



Hosts : Sheep, goat. Rocky Mountain 

 bighorn sheep, mouflon [Ovis nmsinion), 

 0. orientalis, Siberian ibex (Capra ibex 

 sibirica), Barbary sheep {Animotragus 

 lervia), Persian gazelle {Gazella subgnt- 

 turosa). 



Location : Small intestine, especially 

 the posterior part,and also cecum and colon. 



Geographic Distribution : Worldwide. 



Prevalence : This species is fairly 

 common. Christensen (1938a) found it in 

 3% of 100 sheep from Maryland and Idaho. 

 Jacob (1943) found it in 5% of 100 sheep in 

 Germany. Balozet (1932) found it in 35% 

 of 63 sheep and 34% of 41 goats in Tunisia. 

 Svanbaev (1957) found it in 52% of 302 sheep 

 and 31% of 48 goats in Kazakhstan. 



Morphology : This species has been 

 described by Yakimoff and Rastegaieff 

 (1930), Balozet (1932) and Christensen 

 (1938a). The oocysts are usually ellip- 

 soidal, sometimes spherical, occasionally 

 slightly ovoid. They are 16 to 27 by 13 to 

 22 /i with means of 23. 1 by 18. 3 ^t (Chris- 

 tensen) or 19. 8 by 16. 5fj, (Balozet). Their 

 length-width ratio is 1. 1 to 1. 5 with a mean 

 of 1.27 according to Christensen (1938). 

 The oocyst wall is 1 to 1. 5 |i thick, trans- 

 parent, almost colorless to pale brownish 

 yellow, and composed of two layers of 

 which the outer is half as thick as the inner. 

 A micropyle is absent or imperceptible 

 (occasionally visible under bright light if 

 the oocyst is tilted, according to Christen- 

 sen). There is no micropylar cap. An 

 oocyst polar granule and oocyst residuum 



