MORPHOLOGY 



49 



Cirrus fiber 

 Ectoplasmic granules 

 Basal plate of the cirrus 



Basal granules of 

 component cilia 



Undulating membrane 



Fig. 11. a, five anal cirri of Ewplotes eurystomus (Taylor); b, schematic 

 ventral view of Stylonychia to show the distribution of the cirri. 



