IIELTX.— Plate LXIV. 



aperturd lunari ; per'utomate timpUci, alio, reflexiua- 

 culo, margiiie columellari /tulterpaiuo. 



The greyish Helix. Shell umbilicated, depressly glo- 

 bose, obliquely finely striated, shining, greyish, en- 

 circled with opake-white zones and lines ; spire short ; 

 whorls four to five, slijihtly convex ; umbilicus very 

 narrow ; aperture lunar ; lip simple, white, a little re- 

 flected, columellar edge slightly expanded. 



Pfeiffer, Symbolae, vol. i. p. 41. 



Had. Vera Cruz, Mexico. 



A pretty white-zoned shell, with very much the form and 



general aspect of a Selicina. 



Species 328. (Mus. Cuming.) 



Helix PUBESCESS. Hel. testa um/iilicaid, orbiculari, sub- 

 discoidea, tenui, semipellucidd, punctis numerosk setosis 

 undique sculptd; spird planulutd, suturd impressd; an- 

 fractibus qu'mque, rotundatU; nmbiUco anffusto, pro- 

 funda ; aperturd sem'dunari ; perisiomate simplici, 

 acuto. 



The pubescent Helix. Shell umbilicated, orbicular, 

 nearly discoid, thin, semitransparent, sculptured 

 throughout with numerous bristly dots; spire flat- 

 tened, suture impressed ; whorls five, rounded ; um- 

 bilicus narrow, deep ; aperture semilunar ; lip simple, 

 acute. 



Pfeiffer, MSS. (ilus. Cuming.) 



Ilab. ? 



A light semitransparent straw-coloured shell, covered 



with small bristly dots. 



vexiusculd, comeo-fuscd, i^nui, nitida, tupenu oblique 

 rugosd, subtus tubstriatd ; anfractibus quinque, tupra 

 planulatia, basi convexis, ultimo subangulato ; umiilicv 

 in/undiiuti/ormi ; aperturd obliqud, lunari; peritto- 

 mate simplici, refiexo, intus sublabiaio ; parielf aperfu- 

 rati dente pamilo munito. 



The marshy Helix. Shell umbilicated, orbicularly 

 slightly convex, horny brown, thin, shining, obliquely 

 wrinkled above, finely striated beneath ; whorls five, 

 flattened above, convex at the base, last whorl slightly 

 angular ; umbilicus funnel-shaped ; aperture oblique, 

 lunar; lip simple, reflected, slightly thickened in- 

 wardly ; wall of the aperture furnished with a small 

 tooth. 



Pfeiffer, in Wiegman's Archives, 1839, p. 350. 

 Helix lingulata, Deshayes. 

 Helix liamonis, D'Orbigny. 



Hab. Cuba. 



A homy species of Planorbis-like form, with a small 

 white callous tooth upon the body-whorl. 



Species 329. (Fig. a, b, Mus. Cuming.) 

 Helix paludosa. Hel. testa uaibilicatd, orbiailaio-con- 



Species 330. (Mus. Cuming.) 



Helix leucoraphe. Hel. testa umbilicata, orbiculari, 

 pellucido-corned, suturis peadiariler opaco-atbo Mnaiis ; 

 spird convexd ; anfractibus quinque, ultimo rotundato ; 

 aperturd lunari, labro simplici. 



The white-sutured Helix. Shell umbilicated, orbi- 

 cular, transparent horny, with the sutures peculiarly 

 zoned with opake-white ; spire convex ; whorls five, 

 the last rounded ; aperture lunar, lip simple. 



Pfeiffer, Pro. Zool. Soc. 1850. 



Hab. ? 



Distinguished by a characteristic white zone at the 

 suture. 



