185 CONTRIBUTIONS TO GEOLOGY. 
M. Alabamiensis. Plate 6. Fig. 201. 
Description. Shell ovate, smooth ; substance of the shell 
rather thick; spire rather elevated ; whorls slightly in- 
curved above; columella furnished with a large oblique 
fold; mouth narrow, subovate, emarginate at base; outer 
lip sharp, within having one or two longitudinal folds. 
Length .4, Breadth 3-20ths, of an inch. 
Observations. Unfortunately, but two specimens of this 
species were obtained, neither of which is entirely per- 
fect. The fold is situated about the middle of the colu- 
mella, and is very large. One of the specimens has but one 
longitudinal fold within the lip, while the other has two. 
The sutures are filled up by the incrusted deposit which 
extends to the top of the spire. 
GENUS CONUS. Linneus. 
C. Claibornensis. 
Description. A small cone, for which I had proposed this 
name, was found in the sand, and by accident was mislaid, 
before the description and figure were made. It was about 
one quarter of an inch long, flattened on the sides, cari- 
nate above, and canaliculate on the superior part of the 
whorls; the spire was rather low and pointed. It is to be 
regretted that any accident should have happened to it, 
as it is the only specimen of a cone found at this locality, 
to my knowledge. 
