516 



TELOSPORIDIA 



Plasmodium equi Castellani and Chalmers, 191 3. 

 Found by us in a horse in Ceylon. It closely resembles P. canis. 



Plasmodium brasilianum Gonder and Gossler, 1908. 



Resembles the human quartan parasite, but found in Brachyurus calvus in 

 Brazil. 



Plasmodium vassali Laveran, 1905. 



- Synonym. — P. vassali Sambon, 1907. 

 Found by Vassal in a squirrel — Sciurus griseimanus. 



Fig. 172, — Plasmodium canis Castellani and Chalmers. 

 I. Young gametocyte; 2, Macrogametocyte ; 3, Microgametocyte. 



Other Forms, 



In Mammals. — Plasmodium murinum Dionisi, 1898, in Myotis myotis; 

 P. monosoma Vassal, 1907, in Vesperugo abramus. 



In Birds. — P. majoris, in Pavus major; P. vaughani Novy and MacNeal, 1904, 

 in Merula migratoria. 



In Lizards. — P. diploglossi Aragao and Neiva, 1900, in Diploglossus fasciatus ; 

 P. iropiduri Aragao and Neiva, 1909, in Tropidurus torquatus Wied. in Brazil. 



Genus Haemocystidium Castellani and Willey, 1904. 



The characters of this genus resemble those of the genus Plasmodium, but 

 the parasites are generally larger, and, according to Dobell, the schizogony is 

 very simple, there being as a rule binary and occasionally quarternary division, 

 which takes place in the general circulation. Woodcock, however, considers 

 the forms which Dobell describes as binary fission to be fusion forms of the 

 parasites. Pigment present. 



Fig. 173. — Hcsmocystidium simondi Castellani and Willey. 

 (After Castellani and Willey.) 



Haemocystidium simondi Castellani and Willey, 1904. 



This parasite was found in Hemidactylus leschenaultii Gray in Ceylon. 



Other species: H. metschnikowi Simond in Chitrao indica Gray in India; 

 H- mesnili Bonet in Naja sp. (?) in West Africa; H. roumei Bonet in Cinnyxis 

 belliana Gray in West Africa; H. testudinis Laveran in Testudo pardalis in 

 South Africa; H. najcs Wenyon in Naja ha je ; and in Naja nigricollis in 

 Khartoum. 



