82 NON-MARINE FOSSIL MOLLUSCA. 



PLATE 1. DEVONIAN. 



Strophites grand^eva Dawson. (Page 49.) 



Fig. 1. Fragment, enlarged. The small outline to the left shows the natural size. 

 After Dawson. 



Anodonta? angustata (Vanuxem) Hall. (Page 18.) 



Fig. 2. Right side view, natural size. 



Fig. 3. Dorsal view of same. After Vanuxem. 



Anodostta? cattsiullensis (Vanuxem) Hall. (Page 18.) 



Fig. 4. Right side view, natural size. After Vauuxem. 



