PLATE 8 



EXPLANATION OF FIGURES 



32 Nuclear end of living spermatozoon in which the flagellum is beginning 

 to protrude from the tube. 



33 Nuclear end of living spermatozoon with flagellum fully extended. 



34 Mitochondria-bearing end of a living spermatozoon in the same stage of 

 development as that in figure 33. The vesicle at the tip is surrounded by a 

 circlet of short processes. The tube is ridged and somewhat flattened. 



lis: 



