207 St. Maurice; and Claiborne Pejlecypoda 207 



PLATK 6 

 Figure Paee 



I. Ostrea alabaniiensis Lea X i 9 



Young, showing radii and beginnings of plications. Claiborne, 

 Ala. 



2-12. Q. sellceformis Conrad, X i 



Young, showing both valves and various stages of posterior 

 flexure. Base of bluff at Claiborne, St. Maurice stage. 

 5. Represents a young specimen with concentric growth-lines 

 well developed in comparison with the strength of the radii, 

 var. Iceta de Greg., p. 201. 



