D. L. Mackinnon 
177 
The amoebae of the second type are sometimes parasitized by a micro¬ 
coccus (cf. Nagler, 1910), accompanied by nuclear hypertrophy and other 
signs of degeneration. 
Fig. 3. Large Entamoeba with nucleus of the type found in the entamoebae of vertebrates. 
Fig. 4. Entamoeba from Tipula. Small individual of type 2. 
Fig. 5. Large Entamoeba of 2nd type. Here the chromatin is disposed in three 
excentric masses. There are numerous micrococci in the cytoplasm. 
Parasitology v 
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