18 
APPENDIX. 
Eocene. 
TEREBRATULA. 
T. demissirostra , pi. 3, fig. 1. Shell ovate, inflated, with five short 
plications, lateral plicse widest; valves nearly equally ventricose the 
smaller valve least so and regularly arched in outline ; tip of the beak of 
larger valve acute and curved downwards nearly to the summit of the op- 
posite valve ; foraminal area very oblique. 
Local. Wilmington, 1ST. C. Prof. Iverr. 
Prof. Kerr informs me that this species was found imbedded in a 
whitish Eocene limestone near Wilmington. The pendent angle of the 
rostrum is a striking character of the shell. 
PECTEN. Lin. 
P. anieophura. Shell ovate, ventricose, ribs about 25, very unequal, 
crossed by arched squamose lines. Length 3 inches; height 3f inches. 
In the intervals of the large ribs there are 2 smaller ribs in some, one 
in others. 
Found by Dr. Yarrow, 40 miles from Beaufort, K. C. 
P. Garolinensis, pi. 3, fig. 2. Shell ovate, convex, ribs numerous, nar- 
row, densely and minutely crenulated, rounded, alternating with2 smaller, 
interstitial radii which are also crenelated. 
The upper figure represents the lower valve, the outline figure 2 the 
upper valve. 
Miocene. 
LIEOPECTEK. Conrad. 
L. Carolinensis. Shell rounded, lower valve slightly convex or nearly 
flat, ribbs 11 or 12, convex on the back, angular on the sides, subnodose ; 
disk undulated concentrically ; interstices of the ribs with minute radiat- 
ing lines crossed by minute squamose lines, ears large, sinus rather deep 
with a rounded margin ; height 3 inches ; length 3 3-S inches. 
OSTREA. Lin. 
O. perlirata. Shell elevated, pointed towards the apex, fan-shaped, 
very thick in substance, with profoundly elevated divaricating ribs laterally 
compressed. Height 6 inches. 
Locality. Neuse river, 10 miles above Kewbern. 
