EIMERIA. 



191 



identical with those found in cases of human coccidiosis. 

 Thus E. oxyspora and E. snijdersi are synonymous with 

 E. sardine. 



In India Setna and Bana (1935) have studied the coccidial 

 infection in a number of fish, and described the oocysts and 

 sporocysts from ten different species, but the oocysts in no 

 case correspond with those of E. dujjearum or E. sardinse. 



Habitat. — ^AHmentary canal of man who had visited South 

 Africa, India, and Ceylon. 



120. Eimeria smithi Yakimoff & Galouzo. (Fig. 93.) 



Coccidium oviforme (part), Guillebeau, 1893, p. 81. 



Eimeria zurni (part), Smith & Graybill, 1918, p. 89 ; Wenvon, 



1926, pp. 842-3, fig. 362. 

 fEirneria zurni (part). Cooper, 1926 a, p. 290 ; 1926 b, p. 291. 

 fBovine Coccidia (part). Cooper, 1927, pp. 92-7, pi. x. 

 Eimeria smithi, Yakimoff & Galouzo, 1927, pp. 185-200, figs. 1-7 ; 

 Reiehenow, 1929, p. 945 ; Rastegaieff, 1930, pp. 390-1, fig. 2. 

 fBovine Coccidia, Sen, 1932, p. 34. 

 ^Eimeria smithi. Ware, 1936, p. 35. 



Oocysts are ovoid, with one pole pointed, have a thin wall, 

 and are provided with a micropyle. They are brownish in 

 colour, and are distinctly larger in size than those of E. zilrni. 

 Mature cysts do not show any oocystic residue. Sporocysts 

 pear-shaped, with a sporo cystic residue. 



Fig. 93. 



Fig. 95. 



Fig. 94. 



Fig. 93. — Eimeria smithi Yakimoff & Galouzo. (After Yakimoff and 



Galouzo.) 

 Fig. 94. — Eimeria wassilewskyi Rastegaieff. (After Rastegaieff.) 

 Fig, 95. — Eimeria zurni (Rivolta). (After Yakimoff and Galouzo.) 



Dimensions. — Oocysts 25-35^ in length; sporocysts 10-8- 

 14-4 jLt by 7-9 /u. ; sprozoites 3-6-5-8(U, by S-hfi. 



EemarJcs. —Zscho^e (1892), Hess (1892), and Guillebeau 

 (1893) were the first to describe coccidiosis of cattle as a 

 distinct disease. Guillebeau noted that in certain years the 

 disease became epidemic and caused considerable mortahty. 

 Multiplication occurred in the epithelial cells of both the small 



