532 Animal Biology 



Trypanosoma gambiense (class Mastigophora) (Fig. 263) produces 

 African sleeping sickness; Giardia intestinalis produces a type of diarrhea. 

 In the class Sarcodina, Endamoeba histolytica (Fig. 264) produces 

 amoebic dysentery and ulcers and E?idamoeba gingivalis is associated with 

 Pyorrhea alveolaris. In the class Sporozoa, Plasmodium vivax produces 

 tertian malarial fever with a characteristic chill every forty-eight hours 



¥\acje]]a 

 ^ody she]] 



Chromatophores- _ 

 Spines 



FJageUa- 



Fig. 260. 



Fig. 261. 



Fig. 260. — Branched colony of Dinohryon sertularia, a protozoan of the class 

 Mastigophora. Note the flagella of unequal length. 



Fig. 261. — Spherical colony of Synura uvella, a protozoan of the class Masti- 

 gophora. Note the flagella of unequal length; the chromatophores are paired color 

 bands; spines are bristles on the body of each individual. 



Pcriftome 



-food 



-Macleus 



Contractile vacuole 



Cilia 



Fig. 262. — Balantidium coli, a protozoan of the class Infusoria, is associated with 



a type of diarrhea. 



and for which quinine is specific treatment; Plasmodium malariae (Fig. 

 176} produces quartan malarial fever with its attacks of malaria at inter- 

 vals of three days; Plasmodium falciparum produces estivoautumnal ma- 

 larial fever (tropical malaria) with chills daily or at irregular intervals. 



