2 Descriptions of Two New Sj)ecies of 



Shell imperforate, lenticular, carinate, the carina obsolete 

 near the aperture, rather thin, beneath the epidermis pale 

 brown ; the epidermis dark chestnut color, with numerous 

 minute curved hair-like processes lying flat upon, and attached 

 to the epidermidal surface of the upper whorls in the direction 

 of the incremental striae, the epidermis at the base covered 

 with acute, raised, transverse tubercles, most numerous, and 

 having erect bristles near the aperture ; spire convex-conoid ; 

 whorls five, flattened, gradually increasing, the last gibbous 

 above, suddenly but slightly deflected ; apex minutely granu- 

 late ; base convex, little indented in the umbilical region, and 

 with impressed spiral lines beneath the epidermis ; suture 

 deeply impressed ; aperture oblique, transverse, auriform, nar- 

 rowed by a slender slightly arcuate lamelliform parietal tooth 

 extending across from the umbilical axis, and terminating with 

 a short angular deflection within the aperture ; upper margin 

 of the peristome acute, scarcely reflected, lower margin slightly 

 arcuate, depressed, slightly reflected, and partially appressed to 

 the body whorl, with a tooth-like callus within, having an 

 almost obsolete notch in the centre. 



Diam. maj. 9, min, 8, alt. 5 mill. 



Habitat. — Moimtains in Fayette, or Green Briar Co., Virgi- 

 nia. W. H. Edwards ! 



Observations. — ^This species is allied to or rather interme- 

 diate between H. harbigera Kedf (Plate IX. figs. 4-7), and II. 

 hirsufa Say — the former connecting H. spinosa Lea with H. 

 fraterna Say. It is smaller, more elevated, less acutely cari- 

 nated, and readily distinguished from H. barbigera by the par- 

 tially appressed, notched peristome, and the different character 

 of the epidermis. In H. barbigera the attached hair-hke epi- 

 dermidal processes are produced, at the sutures and carina, 

 into cilia which are entirely wanting in this species. The same 

 processes, though less numerous, and sometimes almost obso- 



