THE TELOSPORASIDA AND THE COCCIDIA PROPER 



233 



EIMERIA PARVULA 

 KOTLAN, 1933 



Host : Domestic goose. 



Location : Small intestine, primarily 

 posterior part. 



Geographic Distribution : Europe. 



Prevalence : This species is com- 

 mon in geese in Hungary, according to 

 Kotlah (1933). 



Morphology : This species was des- 

 cribed by Kotlin (1933). The oocysts are 

 spherical or subspherical, smooth, color- 

 less, delicate, 10 to 15 by 10 to 14 p., 

 without a micropyle. No other morpho- 

 logical details were given. 



Life Cycle : Unknown. According to 

 Kotlan (1933), the endogenous stages are 

 found almost exclusively in the epithelial 

 cells of the villi. Oocysts first appear in 

 the feces 5 days after infection. 



Pathogenesis : According to Kotlan 

 (1933), this species is non- pathogenic. 



EIMERIA ANATIS 

 SCHOLTYSECK, 1955 



Host : Wild mallard (Anas platyrhyn- 

 chos). Scholtyseck did not find this spe- 

 cies in 6 domestic ducks, which he called 

 A. domes tica. 



Location : Small intestine. 



Geographic Distribution : Europe 

 (Germany). 



Prevalence : Scholtyseck (1955) found 

 this species in 5 of 32 wild mallards. 



Morphology : The oocysts are ovoid, 

 14 to 19 by 11 to 16fi with a mean of 17 

 by 14 /J.. The oocyst wall is smooth, about 

 0. 7 to 1.0 /i' thick, with a thickened ring 

 forming shoulders around the micropyle. 

 An oocyst residuum and polar granule are 

 absent. The sporocysts are elongate 

 ovoid or ellipsoidal, with a slight thicken- 



ing at the small end but not a true Stieda 

 body. A few sporocyst residual granules 

 are present between the sporozoites. 



Life Cycle : Unknown. 



Pathogenesis : Unknown. 



Remarks : Tiboldy (1933) reported 

 Eimeria sp. oocysts in domestic ducks in 

 Hungary. They were ovoid, elongate ovoid 

 or occasionally spherical are measured 11 

 to 25 by 8 to 13 /i . Their relationship to 

 E. anatis is unknown. 



EIMERIA LABBEANA 

 PINTO, 1928 



Synonyms : Coccidium pfeifferi, 

 Ewieria pfeifferi, Eimeria coliimbarum. 



Hosts: Domestic pigeon, ring dove 

 (ColiDuba palumbus), turtle dove (Strep- 

 topelia turtur), Streptopelia orientalis 

 meena (see Scholtyseck, 1956). 



Location : Small and large intestine. 



Geographic Distribution : Worldwide. 



Prevalence : Common. 



Morphology : The oocysts are sub- 

 spherical to spherical, colorless or 

 slightly yellowish brown, 13 to 24 by 12 to 

 23jLi. The oocyst wall is composed of 2 

 layers, the inner one darker than the outer. 

 There is no micropyle. An oocyst polar 

 granule is present. An oocyst residuum 

 is absent. The sporocysts are elongate 

 ovoid, with a Stieda body. A sporocyst 

 residuum is present. The sporozoites lie 

 lengthwise, head to tail, in the sporocysts. 

 They are slightly crescent-shaped, with 

 one end wider than the other, a vacuole at 

 each end and the nucleus near the middle. 



Nieschulz (1935) separated this species 

 into two on the basis of size. He retained 

 the name E. labbeana for the smaller form, 

 which measured 13 to 24 by 12 to 22 jn 

 (usually 15 to 18 by 14 to 16jj,) with a mean 

 of 18 by 15(i. He named the larger form 

 E. columbarum ; it measured 17 to 24 by 



