PLATE XXXII. 



PA6B 



Figs. 1, la, 2, 2a, 2b. Cokbxjla subengonata Dall 163 



1. Exterior of right valve. Popes Creek, 

 la. Interior of same specimen. 



2. Interior of left valve. Popes Creek. 

 2a. Exterior of same specimen. 



2b. Hinge of same specimen, enlarg'ed. 



Figs. 3, 3a, 4, 4a, 5, 5a, 6, 6a. Corbula aldeichi Meyer 163 



3. Exterior of right valve. Evergreen, Va. 

 3a. Interior of same specimen. 



4. Interior of left valve. Evergreen, Va. 

 4a. Exterior of same specimen. 



5. Exterior of right valve. Evergreen, Va. 

 5a. Interior of same specimen. 



6. Interior of yoxing left valve. Evergreen, Va. 

 6a. Exterior of same specimen. 



Figs. 7, 7a, 8, 8a, 8b. Coebula oniscus Conrad 164 



7. Interior of right valve. Evergreen, Va. 

 7a. Exterior of same specimen. 



8. Dorsal view of specimen. Evergreen, Va. 

 8a. Interior of right valve of same individual. 

 8b. Exterior of same valve. 



384 



