CHAPTER LVIII. 

 THE INTRA-CORPUSCULAR H^MATOZOA. 



Section I. The genus Hsemamoeba, p. 770. 



1. The haematozoon of malaria, p. 770. 



Methods of examination, p. 770. 



Structure of the parasite, p. 772. Morphology, p. 774. Life history, p. 776. 



The different species of hsematozoa found in malaria, p. 778. 



Examination of mosquitos, p. 780. 



Experimental inoculation, p. 781. 



2. The hsematozoon of monkeys, p. 781. 3. The hsematozoon of bats, p. 781. 

 4. The haematozoa of birds, p. 781. 



Section II. The genus Hsemogregarina, p. 783. 



1. Hcemogregarina stepanowi, p. 783. 2. Hcemogregarina ranarum, p. 784. 

 3. Hcemogregarina lacertarum, p. 785. 



LAVERAN classified the intra-corpuscular Hcematozoa or Hcemacytozoa into 

 three genera : Hcemamceba, Piroplasma and Hcemogregarina. 



SECTION I. THE GENUS H^MAMGEBA. 



The genus Hcemamceba or Plasmodium consists of intra-corpuscular parasites 

 which are generally pigmented and in which reproduction takes place both 

 asexually (endogenously) and sexually (exogenously), in the latter case with 

 the formation of flagellated parasites representing the male element. 



The Hcemamcebce occur as parasites in man, monkeys, bats, birds and some 

 reptiles. 



The various parasites described under the names Hcemamceba, Plasmodium, 

 Laverania, Proteosoma and Halteridium (Laveran and Mesnil) must all be regarded 

 as belonging to the genus Hcemamceba. 



1. The hsematozoon of malaria. 



Hsemamoeba malarise. 

 Synonyms. (Plasmodium malar ice Plasmodium vivax Plasmodium 



prcecox Laverania malarice.) 

 The pathogenic agent of malaria was discovered by Laveran. 



Methods of examination. 



The hsematozoon should be looked for in the blood of infected persons 

 preferably just before or at the commencement of the onset of an attack of 

 fever. 



