INTRODUCTION TO THE PROTOZOA 29 



Class SARCODASIDA 



With pseudopods but without flagella or cilia. Nucleus vesicular. 



Subclass RfflZOPODASINA 



With lobopods, filopods or myxopods but without axopods. 



Order AMOEBORIDA 



With lobopods. Without test. 



Family NAEGLERIDAE 



With amoeboid and flagellate stages. 



Naegleria 

 Trimastigamoeba 



Family AMOEBIDAE 



Free-living or coprozoic amoebae without a flagellate 

 phase. 



Acanthamoeba Sappinia 



Hartmannella Vahlkampfia 



Family ENDAMOEBIDAE 



Parasites in the digestive tract of vertebrates and inverte- 

 brates. 



Dientamoeba Entamoeba 



Endamoeba lodamoeba 



Endolimax 



Order TESTACEORIDA 



With a single-chambered test. 



Family ARCELLIDAE 



Test simple and membranous. Pseudopods filose or sim- 

 ply branched. 



Chlamydophrys 



