EXPLANATION OF PLATE VIII. 
Figure 1. ALASMODONTA COMPLANATA Barnes. % natural 
diameter. 
Figure 2. ALASMODONTA COMPLANATA Barnes. Q % 
natural diameter. 
Figure 3. ALASMODONTA RUGOSA Barnes. % natural 
diameter. 
Figure 4. ALASMODONTA RUGOSA Barnes. ¥% natural 
diameter. 
Figure 5. ANODONTA FOOTIANA Lea. 2% natural diameter. 
