4r2 RemarTcs on Certain Species of 



referred to Dr. Binney's description of the shell now under 

 consideration. JI. fustuloides is intermediate in size between 

 H. pustula and S. lejporina — is less globose than the former, 

 and more sparingly hirsute. It differs widely from both in the 

 character of the umbilicus — the aperture is much like that of 

 pusticla^ but more narrow than that of lejporina. The inferior 

 tooth on the peristome is more developed laterally than in H. 

 pustula — indeed it has a somewhat bifid appearance, in which 

 respect it is more allied to 11. Ujporina. 



The fulGTum in H. pustuloides is of the same nature as that 

 in H. lepo7nna, but less developed, and with the outer edge 

 entire. 



The accompanying figures show the base of II. pustuloides 

 (fig. 2) and II. pustula (fig. 1). 



2 



Dr. Binney's figure imperfectly represents the former, and as 

 regards the size of the umbilicus is inconsistent with his 

 description. 



Helix glapBiyr.a Say. 



Say's description was published in Nicholson's Encyclopaedia 

 (Amer. Ed. 1816), and is as follows ; — 



" II. Glapiiyra. 



"Shell very much depresse*], thin, fragile, pelhicid, polished; whorls 

 five, regularly rounded, and with obsolete and irregular wrinkles across 

 them ; beneath whitish ; umbilicus moderate, not exhibiting the volu- 

 tions. PI. 1, fig. 3. 



" Taken by Mr. G. Ord in his garden in Philadelphia. 



