269 



Cytamoeba bacteriferaS In frogs not uncom- 

 monly curious rod-shaped bodies are found lying in a 

 vacuole in the red cell. When these occur further 

 search will show cysts filled with these rod-like bodies. 

 Originally described as protozoan parasites, they are 

 considered by Laveran to be bacterial in nature. 



4. H. berestneiji. In frogs in Bombay. Resembles 

 H. magna. Encapsuled and free vermicules occur. 

 The latter have the nucleus near the blunt anterior 

 end. 



Fig. 83. (i) Hg. magna ; (2) ' Cytamoeba bacterifera ' 



5. H. theileri.ln R. angolensis in the Transvaal. 

 Large haemogregarines, 15 to 17 by 5 to 6 M (Fig. 84). 

 (i) They are oval, spindle-shaped, or with one end 

 slightly recurved. Some lie in a cavity which may 

 either be a cyst or only a cavity in the red cell. (2) 

 Vermicule free forms, 24 by 4^, also occur. The red 

 cells are much altered and their nucleus may be divided 

 into two parts. 



6. H. neireti. In R. mascariensis. They are 

 oval in shape. 16 to 21 by n to 14/4. The nucleus 

 is elongated and set at right angles to the axis of the 

 haemogregarine. The largest forms have one end 

 slightly recurved (Fig. 84). 



