26 INTRODUCTION TO THE PROTOZOA 



Order PHYTOMONADORIDA 



With 1 to 8 flagella. Typically with 1 green chromatophore. 

 Body wall contains cellulose. Starch and lipids stored as food. 



Family CHLAMYDOMONADIDAE 



Solitary, with a well-developed membrane. 



Polytoma 



Subclass ZOOMASTIGASINA 



Without chromatophores. Nutrition holozoic or saprozoic. 



Order RfflZOMASTIGORIDA 



With both flagella and pseudopods. 



Family MASTIGAMOEBIDAE 



With 1 to 3, rarely 4 flagella. 



Histomonas 



Order PROTOMASTIGORIDA 

 With 1 or 2 flagella. 



Family TRYPANOSOMATIDAE 



With 1 flagellum. Body characteristically leaf -like but 

 may be rounded. With a single nucleus and a kinetoplast. 

 With a basal granule from which a flagellum arises. Ex- 

 clusively parasitic. 



Blastocrithidia Leptomonas 



Crilhidia Phytomonas 



Herpelo»ioiias Tyypa>ioso)ua 

 Leisliuiaiiia 



Family BODONIDAE 



With 2 flagella originating anteriorly, one directed anter- 

 iorly and the other posteriorly. Anterior end more or less 

 drawn out. With 1 to several contractile vacuoles. 



