162 SPOROZOA. 



94. Lankesterella monilis (Labbe). (Fig. 73.) 



Hsemogregarinaranarum (part), Celli & Sanfelice, 1891, p. 504, pi. v, 



figs. 2, 3, 4, 12-15 ; Kmse, 1890, p. 541. 

 Drepanidiwm monile, Labbe, 1894, p. 76, pi. iii. 

 Lankesterella monilis, Labbe, 1899, pp. 74-5, fig. 140. 

 ^Lankesterella monilis, Berestneff, 1903, pi. viii, fig. 7. 

 Lankesterella monilis, Minchin, 1903, pp. 265, 267, 345. 



Free stages very mobile and showing successive undulations 

 in locomotion. Body shows constriction into three segments, 

 the middle one containing the nucleus. Nucleus vesicular, 



Fig. 73. — Lankesterella monilis (Labbe). 

 Free forms. (After Labbe.) 



containing a karyosome and numerous chromatoid granules. 

 No vacuole. Cysts as in L. ranarum. 



Habitat. — Blood of Eana tigrina Daud. and R. limnocharis 

 Wiegmann : Bombay, Bombay. 



Subfamily CYCLOSPORINS Wenyon, 1926. 



Oocysts contain two sporocysts, each containing two, four, 

 or eight sporozoites. 



Genus ISOSPORA Aime Schneider, 1881. 



Isospora, Aime Schneider, 1881, p. 401. 



Coccidium, Grassi, 1881, p. 135, pi. iii, figs. 37-40 ; p. 192. 



Diplospora, Labbe, 1893, p. 407. 



Hijaloklossia, Labbe, 1896, p. 535 ; 1899, p. 55. 



Isospora, Labbe, 1899, p. 72. 



Diplospora, Labbe, 1899, p. 71. 



Isospora, Laveran & Mesnil, 1902 c, p. 83; Castellani & Chalmers, 

 1919, pp. 473, 475; Dobell, 1922, pp. 1497-8; Craig, 1926, 

 pp. 349-53 ; Wenyon, 1926, pp. 806-28 ; Knowles, 1928, pp. 351- 

 8 ; Reichenow, 1929, pp. 955-61 ; Kudo, 1931, pp. 274-5 ; 

 Calkins, 1933, p. 565 ; Hoare, 1933, pp. 364-9, 383, 385. 



Oocyst develops two sporocysts, each containing four 

 sporozoites. 



Remarks. — Species belonging to this genus are known from 

 man, cats and dogs, birds, lizards, and frogs. Cats and dogs 



