108 NON-MARINE FOSSIL MOLLUSOA. 



PLATE 14. LARAMIE. 



Unio pkiscus Meek & Hay den. (Page 26.) 



Fig. 1. Copy of the original figure of Meek & Haytlen. 



Unio subspatulatus Meek. (Page 25.) 



Fig. 2. Left side view. 



Fig. 3. Dorsal view of the same. After Meek. 



Unio pkim^evus White. (Page 26.) 



Fig. 4. Exterior view of a small left valve. 

 Fig. 5. Interior view of a large right vnlve. 

 (Both natural size.) 



Unio cryptorhynchus W. (Page 25.) 



Fig. 6. Exterior view of an imperfect right valve. 



Fig. 7. Interior view of a fragment of a left valve, showing the cavity behind the 

 cardinal plate. . 



