54 
MELANIA LIMA. 
Plate VIII. — Fig. 8. 
DESCRIPTION. 
Shell conic, or subfusiform; with approximate no- 
dulous spiral lines of unequal size; body whorl angu- 
lated; angle with a series of prominent tubercles; 
base with two lines, the superior one nodulous; aper- 
ture nearly half the length of the shell, contracted, 
and acutely angular above, and obtusely pointed at 
base; labrum very thin; colour olive; within with 
purple bands. 
OBSERVATIONS. 
A fine species, easily recognised by its numerous 
tubercles, and ventricose form. Inhabits Elk river, 
Alabama, adhering to stones, and is a common spe- 
cies. 
MELANIA ALVEARE. 
Plate IV.— Fig. 7. 
DESCRIPTION. 
Shell short conical, ventricose; whorls flattened, 
with a line of wide compressed tubercles at the 
base _of the penultimate whorl; body whorl angulated; 
angle armed with prominent tubercles; base hardly 
convex, with about five prominent lines; aperture 
