AMCEBA, VORTICELLA, PARAMECIUM 35 



It has been demonstrated that a certain protozoan, in- 

 jected into the blood of man by mosciuitoes, causes the 

 (Usease, malaria. The parasite lives within the red blood 

 corpuscles, destroyiirg great numbers of them and finally in- 

 ducing chills and fever, and in many cases causing 'leath. 

 The life history of the malarial parasite is interesting and 

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

 species of mosquitoes and part in the human bloo 1. 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 Ufs 

 history of the parasite may be undergone. 



CLASSIFICATION OF THE EXAMPLES 



Branch I — Protozoa. 

 Class — Sarcodina. 



Order — Amcebida. 

 Types of Order : 



Amoeba proteiis — Amoeba. 

 Glohigerina bulloides — Globigerina. 

 Class — Infusoria. 



Order — Holotriehida. 

 Type of Order : 



Paranicciuni aurclia — Slipper animalcule. 

 Order — Heterotriohida. 

 Type of Order : 



Striitor polymorplius — Stentor. 

 Order — Peritricliida. 

 Type of Order : 



Vorticella nehuUlera — Bell animalcule. 

 Class — Sporozoa. 



Order — Ha?mosporidiida. 

 Type of Order : 



Plasmodium malaria — Malarial parasite. 



