HAEMOSPORIDIA 445 



ians; schizogony in erythrocytes; gametocytes also in erythro- 

 cytes; invertebrate hosts unknown. 



D. ranarum (Kruse) (Fig. 203, m-s). In European frogs; schi- 

 zonts 4-9a£ in diameter; merozoites 4-16, 2-3^ by 1-1. 5ju; game- 

 tocytes 5-8yu by 1.5-3;u. 



References 



Boyd, M. F. 1930 A71 introduction to malariology. Cambridge. 

 Dennis, E.W. 1932 The life-cycle of Babesia bigemina (Smith 



and Kilbourne) of Texas cattle-fever in the tick Margaropus 



annulatus (Say). Univ. Calif. Publ. ZooL, Vol. 36. 

 Hartman, E. 1937 Three species of bird malaria. Arch. f. 



Protistenk., Vol. 60. 

 Manwell, R. D. 1935 How many species of avian malarial 



parasites are there? Amer. Jour. Trop. Med., Vol. 15. 

 Ross, R. 1928 Studies on Malaria. London. 

 O'RoKE, E. C. 1934 A malaria-like disease of ducks caused by 



Leucocytozoon anatis Wickware. Univ. Michigan Sch. Forest. 



and Conservation Bull., No. 4. 

 Wenyon, C. M. 1926 Protozoology. Vol. 2. 



