106 



the form of a spherical triangle, moderately expanded, with three 

 teeth in the lower side, of which the outer two stand over one exte- 

 rior pit, with a separate impression beneath each one, and the third 

 is also over an exterior furrow : labrum well thickened, very much 

 reflected : umbilicus rather wide, scarcely contracted except near 

 the apex very obtusely. This rare and elegant species is allied to 

 H. car a and H. Chittyana. 



Height .43 inch ; greatest breadth 1.05 inch ; least breadth .92 

 inch. 



Heltx fuscolabris. Shell transversely ovate-orbicular, convex 

 on both sides : deep reddish brown, paler next the labrum, and at 

 the periphery, darker next below the periphery, often light green 

 around the umbilical region, and behind the lower part of the labrum, 

 clear brown at the margin of the lip, white within : finely but rather 

 strongly granulated, except near the apex and the umbilical region : 

 spire convex or subconoid, moderately elevated : whorls five and one- 

 half, slightly convex, often a little concave in the lower part, with a 

 lightly impressed suture : last whorl with a rather acute periphery : 

 aperture almost horizontal, sublunate, moderately dilated ; with, on 

 the lower side, two white teeth, of which the outer one is very large, 

 and both of which are accompanied exteriorly with proportionate 

 furrows : labrum moderately thickened and reflected, much thicker 

 and more reflected next the columella. This species is intermediate 

 between H. lucerna and H. acuta. 



Height .72 inch; greatest breadth 1.5 inch; least breadth 1.26 

 inch. 



Helix nobilis. Shell transversely ovate-orbicular, moderately 

 and irregularly convex above, regularly and very convex beneath : 

 above reddi.sh or blackish brown, with paler spaces ; beneath with a 

 broad belt of blackish brown next below the periphery, within which 

 the shell is of a bright yellowish green ; with the lip purple, irregu- 

 larly spotted with white : rather feebly granulated, smooth near the 

 apex and umbilical region, with the lower part of the whorls, for the 

 most part, undulated by short oblique impressions : spire moderately 

 elevated : whorls a little more than five, subplanulate, with a lightly 

 impressed suture ; last whorl with an acute periphery, above wiiich 

 it is concave in its last half, and below which it is slightly concave 

 in its first half: aperture subtriangular, with the lower outline much 



