PLATE LXXII. 



PAGE 



Figs. 1-3. Semele carinata (Conrad) 294 



1. Exterior of right valve. St. Mary's River. 



2. Interior of right valve. Same locality. 



3. Exterior of left valve. Same locality. 



Figs. 4, 5a, 5b. Semele carinata var. compacta Dall 294 



4. Exterior of right valve. St. Mary's River. 



5a. Interior of right valve. Oligocene of Oak Grove, Fla. 16.5 mm. 



(After Dall.) 

 5b. Exterior of valve of Fig. 5a. (After Dall.) 



Figs. 6-8. Semele subovata Say 295 



6. Exterior of right valve. Jones Wharf. 



7. Interior of right valve. Same locality. 



8. Exterior of left valve. Same locality. 



Figs. 9a, 9b. Abra longicalla (Scacchi) 296 



9a. Exterior of right valve. Jones Wharf. 

 9b. Interior of same valve. 



Fig. 10. Abra marylandica n. sp 296 



10. Interior of left valve. Plum Point. 



Figs. 11, 12. CuMiNGiA MEDiALis Conrad 297 



11. Exterior of left valve. Jones Wharf. (?) 



12. Interior, of left valve. Same locality. 



Fig. 13. Tellina .equistriata Say 297 



13. Exterior of left valve. Jones Wharf. (?) 



Fig. 14. Tellina ( Angulus) declivis Conrad 298 



14. Exterior of left valve. Plum Point. 



Figs. 15, 16. Tellina (Angulus) producta Conrad 299 



15. Exterior of left valve. Plum Point. 



16. Exterior of left valve. Cove Point. 



ei 



