AMCEBA, VORTICELLA, PARAMECIUM 35 



It has been demonstrated that a certain protozoan, m- 

 jected into the blood of man by mosquitoes, causes the 

 disease, malaria. The parasijte lives within the red blood 

 corpuscles, destroying great numbers of them and finally in- 

 ducing chills and fever, and in many cases causing death. 

 The life history of the malarial parasite is interesting and 

 complex. Part of its life is spent in the body of certain 

 species of mosquitoes and part in the human blood. That 

 is, the full development of the malarial parasite cannot 

 take place in the human blood, but a secondary host, 

 the mosquito, is necessary in order that the complete life 

 history of the parasite may be undergone. 



CLASSIFICATION OF THE EXAMPLES 



Branch I — Protozoa. 

 Class — Sarcodina. 



Order — Amoebida. 

 Types of Order : 



Amoeba proteus — Amoeba. 

 Glohigerina bulloides — Globigerina. 

 Class — Infusoria. 



Order — Holotrichida. 

 Type of Order : 



Paramecium aurelia — Slipper animalcule. 

 Order — Heterotrichida. 

 Type of Order : 



Stentor polymorphus — Stentor. 

 Order — Peritrichida. 

 Type of Order : 



Vorticella nehulijera — Bell animalcule. 

 Class — Sporozoa. 



Order — Hsemosporidiida. 

 Type of Order : 



Plasmodium mMarice — Malarial parasite. 



