374 UNIVALVE SHELLS 



Inhabits South Carolina, about Charleston. 



This curious shell is the first and only species of 

 the genus Bulimus, native of the United States, that 

 I have yet seen. I am indebted for it to the resean •li- 

 es of Mr. Stephen Elliott, of Charleston, who in- 

 forms me that it is there found in gardens. In the trun- 

 cated form of the apex of the spire, this species re- 

 sembles the decollata, consolidata,t7*uncata&n(\¥\jrA 

 torticollis, §*c. but it is sufficiently distinct from the 

 former, to which it is more closely allied than to the 

 others, by its less cylindrical and more conic form, 

 being much more robust in its figure and less elonga- 

 ted ; the aperture is consequently wider, and forms 

 a greater proportion of the total length. It does not 

 change to an opaque white after the death of the ani- 

 mal, as the decollata generally does. 



PUPA. Lam. 



1. P. *contracta. Shell dextral, short, subovate, 

 white; apex obtuse ; whorls five ; umbilicus distinct ; 

 aperture irregularly orbicular, complete, the lamina 

 of the labium being elevated above the surface of the 

 preceding whirl and joining the extremities of the la- 

 bia; labium with a large, elongated, prominent tooth, 

 which is concave on the side towards the labrum : 

 labrum bidentate ; a large tooth or fold far within the 

 throat, caused by the fold of the umbilicus : throat 

 much contracted by the large tooth of the labrum inte 

 the form of a horse shoe. 



Total length less than one- tenth of an inch. 



