64 Binney on Terrestrial Mollusks. 



epidermis dark chestnut-color, with numerous minute curved hair- 

 like processes lying flat upon, and attached to the epidermidal sur- 

 face of the upper whorls in the direction of the incremental strife, 

 the epidermis at the base covered with acute, raised, transverse 

 tubercles, most numerous, and having erect bristles near the aper- 

 ture ; spire convex-conoid ; whorls five, flattened, gradually increas- 

 ing, the last gibbous above, suddenly but slightly deflected ; apex 

 minutely granulate ; base convex, little indented in the umbihcal 

 region, and witli impressed spiral lines beneath the epidermis ; 

 suture deeply impressed ; aperture oblique, transverse, auriform, 

 narrowed by a slender slightly arcuate lamelliform parietal tooth 

 extendinij across from the umbilical axis, and terminatinii with a 

 short angular deflection within tlie 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. 



Geographical Distribution. IMountains in Fayette, or Green 

 Briar Co., Virginia. (W. H. Edwards ?) 



Bemcn'ks. This species is allied to or rather iiiti-rmediate be- 

 tween H. barhigera Redf. (Plate IX. figs. 4-7). and //. hirsuta Say 

 — tlie former connecting H. spinosa Lea with H.fraterna Say. It 

 is smaller, more elevated, less acutely carinated, and readily dis- 

 tinguished from H. barbigera by the partially appressed, notched 

 peristome, and the difl"erent character of the epidermis. In H. bar- 

 bigera the attached hair-like epidermidal processes are produced, at 

 the sutures and carina, into cilia, which are entirely wanting in this 

 species. The same processes, though less numerous, and some- 

 times almost obsolete, are observable at the base of tlie former, 

 wliili! in the latter, the basal epidermis approaches in character to 

 that of //. palliata Say. The deep characteristic notch in H. hir- 

 suta is considerably less develope<l in H. Edvardsi, and the callus 

 whicii connects the parietal tooth with the upper margin of the 

 peristome in the former, does not exist in the latter. In the gen- 

 eral character of tlie peristome the species under consideration re- 

 sembles H. hirsuta, wliilr //. barbigera is in that [)articular more 

 api)ropriately comjiared witli If. /rate ma Say. 



