ADELEA. 115 



Identification Table of Families. 



1 (2). Parasitic in the epithelium of the digestive 



tract and its appended glands, chiefly of 



Invertebrates. Zygote motionless ; be- 

 comes enclosed in a resistant oocyst, 



which does not increase in size. The 



sexual and asexual cycles occur in one [emend., p. 115 



host Adeleidae Leger, 



2(1). Parasitic in the cells of the circulatory 



system of Vertebrates. Zygote motile ; 



forms an oocyst which increases in size. 



Alternation of hosts, asexual cycle in 



a Vertebrate and sexual cycle in an [Leger, p. 117. 



Invertebrate Haemogregarinidse 



1, Family ADELEIDiE Leger, 1911, emend. 



Two gametocytes, one of which is smaller in size, unite in 

 a kind of pseudo-conjugation. The nucleus of the micro- 

 gametocyte divides once or twice, and one of its products 

 enters the macrogamete and fuses with its nucleus. The 

 zygote is motionless and becomes enclosed in a resistant 

 oocyst, which does not increase in size. The sexual and 

 asexual cycles occur in the same host. They are intestinal 

 parasites of Invertebrates, and infection is contaminative. 



Wenyon (1926) raised the group to the rank of a suborder, 

 under the title Adblejdea, and divided it into four famihes, 

 viz., DobelHdse Ikeda, 1914 ; Legerellidse Leger, 1911 ; 

 Adeleidae Mesnil, 1903 ; and Klossielhdse Wenyon, 1926. 

 Reichenow (1929) and Kudo (1931) place the family Dobellidae 

 in the suborder Eimeridea. The other genera so far known 

 can conveniently be treated as belonging to a single family. 



Key to Indian Genera. 



1 (2). Oocyst thin-walled, containing numerous [p. 115. 



disc-shaped spores Adelea Schneider, 



2 (1). Oocyst thick-walled, containing smaller [p. 116. 



number of spherical spores Adelina Hesse, 



Genus ADELEA Aime Schneider, 1875. 



Adelea, Aime Schneider, 1875, p. 598 ; Schaudiim& Siedlecki, 1897, 

 p. 193 ; Labbe, 1899, p. 56 ; Perez, 1899, pp. 694-6 ; Minchin, 

 1903, p. 233 ; Dobell, 1907, pp. 155-62 ; JoUos, 1909, pp. 249- 

 62 ; Schellack & Reichenow, 1910, pp. 380-3 ; 1915, pp. 425-60 ; 

 Leger, 1911, pp. 71-88 ; Debaisieux, 1911, pp. 259-66 ; Minchin, 

 1912, p. 352 ; Greiner, 1918, pp. 522-9 ; Wenyon, 1926, p. 1069 ; 

 NoUer, 1928, p. 189 ; Reichenow, 1929, p. 912 ; Kudo, 1931, 

 pp. 277-8 ; Calkins, 1933, p. 544. 



The zygote develops into a large thin-walled oocyst which 



l2 



