lines at the summit of each; base profoundly striated; 

 colour olivaceous, with distant brown bands. 



OBSERVATION. 



Inhabits streams in North Alabama. 



MELANIA BELLA. 

 Plate IX.— Fig. 4. 



DESCRIPTION. 



Shell subulate, with carinated whirls, and a pro- 

 minent crenulated line near the summit of each; 

 aperture elliptical. 



OBSERVATION. 



'.nhabits streams in North Alabama. 



MELANIA DILATATA. 



Plate IX.— Fig. 5. 



DESCRIPTION. 



Shell subovate, ventricose; spire conical; whirls 

 convex; body whirl angular in the middle; aperture 

 subovate, half the length of the shell. 



