HYALONEMA (OONEMA) BIANCHORATUM PINULINA. 



321 



3 

 K 



^-^ 



cr 

 o 



> 



3 

 ■a 

 3- 



15.86- 

 17.45- 

 19.19- 

 21.11 



23.23 - 

 25.55 - 

 28.10 

 30.91 - 

 34.00- 

 37.40 - 

 41.14- 

 45.26- 

 49.78- 

 54.76- 



60.24 - 

 66.26- 

 72.89- 

 80.18- 

 88.20- 

 97.02 - 



106.72 - 



117.39- 



129.13 - 



142.04 - 



156.25- 



171.87- 



189.06- 



207.97 - 



228.76- 



251.64- 



276.81 - 



304.49 



334.93- 



368.43- 



405.27- 



445.80 - 



490.38- 



539.41 - 



Number of Amphidiscs 



Small Micramphidiscs. 



'Large Micramphidiscs 



'Small Macramphidiscs. 



Large Macramphidiscs. 



Fig. 19. — Amphidiscs. 



