PLATE XLVII. 
Nuculites oblongatus. 
Page 324. 
Fig. 1. The cast of the interior of a left valve, partially preserving the surface strife. 
Hamilton group. Shore of Otisco lake, N. Y. 
Fig-. 2. A cast of the interior of a specimen preserving the two valves in conjunction, and showing the 
crenulated hinge. 
Hamilton group. Schoharie Co., N. Y. 
Fig. 3. A cast of the interior similar to the preceding. 
Hamilton group Bear's gulf, Schoharie Co., N. Y. 
Pig. 4. A cast of the interior of a right valve, showing the characters of the hinge. 
Hamilton group. Shore of Skaneateles lake, N. Y. 
Fig. 5. A large specimen similar to the preceding, showing more distinctly the muscular scars and pallial 
line. 
Hamilton group. Bear's gulf, Schoharie Co., N. Y. 
Fig. 6. The interior of a right valve as obtained from a gutta-percha impression. 
Fig. 7. The interior of a large left valve as obtained from a gutta-percha impression from the natural 
mould, fig. 9. 
Hamilton group. Near Cumberland, Md. 
Fig. 8. An enlargement from the preceding. 
Fig. 9. A cast of a left valve preserving the muscular scars, pallial line and crenulations of the hinge. 
Fig. 10. A right valve of short form, preserving the surface striae. 
Hamilton group. Shore of Cayuga lake, N. Y. 
Figs. 11, 12. Right and cardinal views of a cast of the interior, showing- muscular scars and hinge 
crenulations. 
Hamilton group. Near Cumberland, Md. 
Fig. 
Fig. 
Fig, 
Fig. 
A UCULITES CUNEIFORM IS. 
Page 325. 
13. A cast of a right valve. 
Hamilton group. Madison Co., N. Y. 
14. A right valve, somewhat broader in the anterior portion. 
Hamilton group. Schoharie Co., N. Y. 
15. A cast of the interior, preserving the pallial line and some of the surface strife along the base. 
Hamilton group. Fultonham, N. Y. 
16. A small left valve. 
Hamilton group. Jefferson, Schoharie Co., N. Y. 
