PLATE CVII. 



PAGE 



Figs. 1, 2. Glycymeris parilis (Conrad) 393 



1. Interior. 3 miles south of Fishing Creek. x 5/6 



2. Exterior of opposite valve. Same locality. x 5/6 



Figs. 3, 4. Glycymeris subovata (Say) 394 



3. Interior. Greensboro. 



4. Exterior. Same locality. 



Figs. 5-8. Leda liciata (Conrad) 395 



5. Exterior of left valve with coarse sculpture. Plum Point. 



6. Interior of left valve. Same locality. 



7. Exterior of left valve with very fine close-set concentric sculpture. 



Same locality. 



8. Exterior of left valve with very coarse sculpture. Same locality. 



Figs. 9, 10. Leda liciata var. amydra Dall 396 



9. Interior of left valve. Plum Point. 

 10. Exterior of left valve. Same locality. 



