124 HELTCID^. 



DESCRIPTION. 



Animal. Body of a delicate white color, very finely 

 granulated, upper tentacles leather long ; a dark line 

 arising between the tentacles and along the back passes 

 under the shell ; a fainter line is found along each side 

 of the neck. 



Shell of medium size, solid, conic-globose, delicately 

 striate, but leaving the surface smooth and shining. The 

 ground color is variable, being white, dusky, greenish or 

 reddish, and either plain or variously encircled by dark 

 bands ; the tip and the lip, especially the columellar 

 portion, is always rose red, and generally, hkewise, the 

 throat. The spire is elevated, composed of about five 

 and a half convex whorls, the outermost broadly rounded 

 at the periphery. The base is moderately convex and 

 perforated by a minute umbilicus, nearly covered by the 

 expanded and flattened pillar lip. Aperture small, ap- 

 proaching two-thirds of a circle, the peristome acute, 

 thickened within, a little everted, becoming more so 

 towards its inner junction. Among the varieties the 

 following may be enumerated : 



«. elevated, white with a median black band on the 

 outer whorl, which is sutural on the spire margined with 

 pale citron. 



(?. the same, with two approximate black basal bands. 



;-. elevated, white with two narrow bands on the outer 



