107 



curved: with one moderately developed tooth below near the right 

 side : labrum well reflected, moderately thickened : umbilicus want- 

 ing. See Lister, 82, 83. 



Height 1.13 inch; greatest breadth 2.43 inch; least breadth 2.07 

 inch. 



Helix Redfieldiana. Shell transversely ovate, quite convex on 

 both sides : brown, or brownish black, with a paler line on the peri- 

 phery, with the lip white or purple: with coarse transverse striae, 

 which, on the upper side of the shell, are frequently interrupted so 

 as to resemble transversely elongated granulations: apex very ob- 

 tuse : spire very convex: whorls four and one-half, moderately con- 

 vex, with a distinct but moderately impressed suture : last whorl 

 with an acute or subacute periphery : aperture transversely and some- 

 what obliquely seniielliptical, a little modified by the penult whorl : 

 labrum well expanded, reflected, and thickened, expanding into a 

 broad flattened callus, where it joins the labium at the base of the 

 columella : umbilicus wanting. 



Height 1 inch; greatest breadth 1.83 inch; least breadth 1.5 

 inch. 



Helix Blandiana. Shell transversely ovate, quite convex above, 

 moderately convex beneath : brown, paler on the upper whorls and 

 on the lip : with rather coarse transverse striae : apex rather obtuse : 

 spire with the outlines quite convex : whorls five, quite convex, with 

 a well impressed suture ; last whorl with the periphery scarcely sub- 

 angular : aperture oblique, lunate, considerably modified by the in- 

 trusion of the penult whorl : labrum rather thin, moderately reflected : 

 umbilical region slightly indented. 



Height .42 inch ; greatest breadth .63 inch ; least breadth .55 

 inch. 



Helix osculans. Shell very similar to that of //. arhoreoides ; 

 but the whorls increase rather less rapidly, so that the outer whorl 

 and the aperture are not so wide as in that species ; the lower side of 

 the last whorl is thicker, and within is furnished with a stout revolv- 

 ing lamella a little exterior to the middle of this side. This species 

 connects the groups of Jamaica Helices, which are represented by 

 H. arborioides and H. cpiatylium. 



Height .21 inch; greatest breadth .44 inch; least breadth .41 

 inch. 



