54 



MEL AN I A LIMA. 

 Plate VIII.— i^;>. 8. 



DESCRIPTION. 



Shell conic, or subfusiform; with approximate no- 

 dulous spiral hnes 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 ohve; 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 lY.— 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 



