36 Remarks on Certain Species of 



Shell perforate, above slightly convex, with rib-like striae 

 wider apart and more prominent behind the aperture ; beneath 

 inflated, convex, almost smooth, and with microscopic spiral 

 lines ; brown horn color, thin, shining, subpellucid ; whorls 5, 

 gradually increasing, rather convex, the last deflected and 

 turned outwards from the preceding one, scrobiculate, con- 

 stricted, grooved within the umbilical region ; suture im- 

 pressed ; aperture white, oblique, ear-shaped, contracted ; pe- 

 ristome acute, continuous, the margins joined by a tongue- 

 shaped fold, excavated above, entering into the aperture, the 

 right margin having a deeply-seated lamella, which terminates 

 in a reflexed hook, the base with an erect lamelliform, scarcely 

 oblique tooth, produced into, and recurved within the aperture. 



Diam. maj. 9|-; min. 8|^, mill. Alt. 5 mill. 



Habitat. — Wayne Co., Ware Co. and St. Simon's Island, Ga., 

 Postell ! : Camden Co., Ga., Bishop Elliott ! : Glynn Co., Ga. 

 Wilson ! 



Station. — Mr. Postell writes as to the Wayne Co. specimens, 

 of which he sent me about a dozen. 



" These shells are found upon the slopes of the hills, near the 

 base, where the earth is always moist, under fallen pines, and in 

 most cases between the bark and trunk of the trees. The ani- 

 mals feed, I think, on the decayed bark, and not on living vege- 

 table matter." 



The single specimen in my cabinet from Ware Co. Ga., is 

 somewhat larger than the others — has 5^ whorls, — the aperture 

 is brown in color, and the striae are more conspicuous at the 

 base. 



Its measurements are, 



Diam. maj. 10 ; min. 9. Alt. 5^ mill. 



Observations. — This species, of which the annexed fig. IV. 

 shows the aperture, double the natural size, is certainly dis- 

 tinct from the three already considered. It is smaller than 



