2 4 8 



3. H. cynomolgi. In Macacus cynomolgus. The 

 red cell is stippled. Dividing forms have eight to 

 thirteen merozoits. 



4. H. kochi. In chimpanzees and monkeys. The 

 forms usually met with are sexual forms. Asexual 

 forms resembling young malignant tertian parasites 

 are rare. Flagellation can be seen in fresh specimens. 

 The parasites in the fresh film are spherical pale 

 bodies containing brownish-yellow pigment. On 

 staining, two types can be distinguished. The male 

 (mikrogametocyte), pale homogeneous blue with 

 much chromatin ; the female, deep blue, granular, 

 with little chromatin. 



No temperature changes occur in the infected 

 animals. The infection is not transmissible by 

 inoculation (cp. halteridium). 



Post-mortem. The spleen is pigmented, the 

 capsule thickened. Pigment also occurs in the 

 marrow. 



5. [H. boms]. Parasites in the blood of cattle, 

 described by Kolle in South Africa. They have a 

 general resemblance to malaria parasites, but are quite 

 distinct from Piroplasma bovis. They produce remit- 

 tent fever and severe anaemia, but not haemoglobin- 

 uria. Kolle also describes pigment in red cells 

 (independently of parasites), but what this means is 

 not clear.* 



6. H. v as sali. In the squirrel (Sciurus grisei- 

 manus) ; the larger forms are pigmented. The red 

 cells are unchanged. Male and female gametes also 

 occur. 



7. H. (?) talpae. These parasites in the mole 

 more or less completely fill the red cell, a mere shell of 



* Kolle. Zcitschrift fur Hygiene. 1398. 



