EIMERIA. 177 



24 (19). Oocysts oval or cylindrical 25. 



25 (34). Oocysts oval 26. 



26 (31). Sporocysts ovoid or oval 27. 



27. Oocysts 17-34/i by ll-15;(i, without 



residuum ; sporocysts ovoid, 7-9 ^ 



by 5-1 II, with residuum. In [Bana, p. 179. 



lizards E. flaviviridis Setna & 



"28. Oocysts egg-shaped, 25-35 /x, without 



residuum ; sporocysts pear-shaped, 



10-8-14-4/Li by 7-9^, with residuum. [& Galouzo, p. 191. 



In cattle E. smithi YakimoS 



29. Oocysts 32-4-41-4;Li by 21-6-28-8/i, 



without residuum ; sporocysts oval, 



13-19 /x by 3-5-4: fi, without resi- [gaieff, p. 194. 



duum. In nilgau E. yahimovi Raste- 



30. Oocysts egg-shaped, 18ju, by 14-4|U,. [gaieff, p. 194. 



Sporocysts not known. In deer. . . E. wassilewskyi Raste- 



31 (26). Sporocysts fusiform 32. 



32(33). Oocysts 18-8-27-04/i by 18-8-20-8/x, 



without residuum ; sporocysts 14-6 /x [Gupta, p. 188. 



by 6 jLt. In snakes E. najse Ray & Das- 



33 (32). Oocysts 29-31 /x by 22-5-24-5/x, with 



residuum ; sporocysts 14 /x by 4-6 /x. [Gupta, p. 189. 



In snakes E. piscatori Ray & Das- 



34 (25). Oocysts cylindrical 35. 



35 (36). Oocysts 36 ;u, by 18 /x, with residuum. [Das-Gupta, p. 179. 



In snakes E. oylindrica Ray & 



36 (35). Oocysts 25 /x by 12 /x, with residuum ; 



sporocysts oval, 10-12 /x in length. [p. 193. 



In fish E. southwelli Halawani, 



104. Eimeria clupearum (Thelohan). (Fig. 81.) 



Coccidium sp., Thelohan, 1892, p. 158, pi. xii, figs. 13, 14. 

 Coccidium clupearum, Thelohan, 1894, p. 565, pi. xxii, figs. 19, 20. 

 Goussia clupearum, Labbe, 1896, p. 552, pi. xviii, figs. 24, 25; 



1899, p. 64. 

 Eimeria sp., Wenyon, 1915 b, p. 1404. 

 Eimeria wenyoni, Dobell, 1919 a, pp. 187-8, pi. viii, fig. 2 ; Castel- 



lani & Chahners, 1919, pp. 475-6 ; Dobell & O'Connor, 1921, 



p. 100, pi. vi, fig. 104. 

 ■\Eimeria clupearum, Knowles, 1924, p. 24 ; 1928, p. 362, fig. 83. 

 Eimeria clupearum, Wenyon, 1926, pp. 851-2, 861, fig. 350, 11 ; 



Thomson & Robertson, 1928, pp. 360-1, 363; fig. 83, 2; 



Reichenow, 1929, pp. 951, 952-3, fig. 918 b ; Kudo, 1931, p. 274, 



fig. 113/1. 



The oocyst is spherical, is of a hght brown colour, and possesses 

 a fairly thick wall, roughened on the outer surface and lined 

 by a dehcate membrane on the inner surface. It contains 

 four sporocysts, each having rounded ends. Each sporocyst 

 contaias two sporozoites and some residual substance in the 

 form of one or two masses of refractile material. Each sporo- 

 zoite, with rounded anterior and pointed posterior end, con- 

 tains an ovoid refractile body in its anterior portion. 



Dimensions. — Oocyst 18-21 /a in diameter; sporocyst 10 /a 

 l3y7/i. 



SPOR. 21 



