40 AMERICAN JOURNAL 



3. Mesodon Wheatleyi, Bland. 



Plate 7, figure 10. 



Conoidally globose, spire somewhat elevated, with distinct 

 sutures, thin, closely ribbed-striate, with microscopic granula- 

 tions, hirsute ; whorls oj, convex, the last well rounded, but 

 slightly depressed at the aperture, and constricted ; aperture 

 obliquely lunate, with the parietal wall armed by a tooth ; base 

 convex, umbilical region excavated, but imperforate. Reddish 

 horn-colored, the lip rose-colored. 



Diam. 14, height 7 mill. 



Mountains in Cherokee County, North Carolina. 



Mr. Bland remarks upon the close relationship existing 

 between this species and M. Columbiana which inhabits the 

 Pacific States. Each is the only hirsute species of Mesodon of 

 its region. The two are also allied in size, form and color. 



4. Mesodon Christyi, Bland. 



Plate 7, figure 11. 



Depressed, spire obtuse, whorls 4J, somewhat convex, de- 

 scending at the aperture, texture solid, with close, oblique, rib- 

 like strite, periphery a little angular ; aperture depressed, with 

 a strong parietal tooth ; base convex, excavated in the middle, 

 imperforate. Dark horn color. 



Diam. 10, height 4| mill. 



Mountains in Cherokee County, North Carolina. 



Mesodon Roemeri, Pfeiffer. 



This species is very rarely furnished with a completely- 

 covered umbilicus. See description in the perforate section, 

 species 8. 



