362 Description of a new Species of Helix. 



white, erect, oblique, tongue-shaped parietal tooth ; peris- 

 tome thickened, angularly reflected, the upper margin ex- 

 panded, the columella margin dilated, covering the um- 

 bilical perforation. Diam ; maj. 17, miii, 15 mill.; Alt. 

 8 mill. 



Habitat. At the base of sandstone clifis, mouth of Laurel 

 River, Whitley Co., Kentucky. A. G. Wetherby. 



Remarks. — This species belongs to the same group (Me- 

 sodon) as H. dentifera^ Binn,, and H. Boenieri, Pf., but is of 

 smaller size, somewhat more elevated, and r(\'idily distin- 

 guished fi'om them l^y the sculpture and ei)idermis. It dif- 

 fers from H. divesta, Gould, in having a parietal tooth, and, 

 although in general appearance like a small form of H. ap- 

 pressa. Say, is without the lamina on the basal margin of 

 the peristome. 



Five specimens were collected by Mr. AV(^therl>y, to whom 

 I dedicate the s[)ecies. I am unch^r obligation lo him for 

 examples of this and many others, some of tiiem rare species. 



I am indebted to my friend W. G. Binney for the follow- 

 ing partitadars of the dtmtition of H. WetJierhyi. 



Jaw as usual in Jlesodoii, low, wide, arciuito, ends but little attenuated, 

 blunt, with about ei^s^-liteeii decided ribs, denticulatin.i»- either margin. 

 Lingual membrane lonu' and narrow; teeth as usual in the subi>enus (see 

 L. and F. VV. Shells N. A., I, t]<»s. 2i'>2, 24-2). Centrals with a long 

 bluntiy-pointed middle cusp, and obsolete side cusps; laterals like cen- 

 trals, but witli no inner cusps. Marginals low, wide, quadrate, with 

 one very long, oblique, l)lnnt, inner denticle, and one outer, short, blunt 

 denticle. 



WeSix lBdvstl'«i«i, Bland. {Slcnotrema.) 

 This pretty species, hitherto solely known from Virginia, 

 where it was discovered in 1<:>57, by Mr. W. li. Edwards, and 

 not found since, was collected by Mr. Wetherby, in Laurel 

 and Whitley counties, Kentucky. 



Sleflix Motoaaisaiia, Lea. iJLsddon.) 

 In ''Remarks on North American Helicidai" (Ann. Lye. 

 N. Y., VI, 341, 1858), concurring in a suggestion of Dr. 



