Class 



CHAPTER XVI. 

 THE PROTOZOA. 



CLASSIFICATION OF PROTOZOA 



Order 



Gmnamceba- 



X 



Rhkopoda 



(Sarcodina) 



These throw out proto- 

 plasmic projections called 

 pseudopodia. 



Flagella'ta 



(Mastigophora) 

 These move by means 

 of undulating membranes 

 or flagella. 



Infusoria Heterotricha 



(Ciliata) 



These have contractile 

 vacuoles and numerous 

 fine cilia which are shorter 

 than flagella and have a 

 sweeping stroke. 



Spopozoa Coccidiaria 



These have no motile 

 organs. They live para- 

 sitically in the cells or 

 tissues of other animals. Haemosporidia 

 Reproduction by spores. 



THE PROTOZOA. 



RmzopoDA (SARCODINA). 



In this class of protozoa the pseudopodia serve the double purpose 

 of nutrition and locomotion. These protoplasmic extensions may be 



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