HELIX. 



Plate CWVHI. 



Species 769. (Mus. Cuming.) 



Helix Dringi. Hel. testa oUectl umbilicatd, depressd, 

 tenui,fragiU, superiw conferlim plicatuld, albidd, opa- 

 cd, Uneis pellucidk cingulald ; spird mhplamdald ; an- 

 fractlbm quaiuor ad quinque, vix convexiusculis, ultimo 

 latere subcompresm, ban lacigato, irijlato ; aperturd 

 lutiari ; perisiomale expatiao, intus subiiicrassalo, mar- 

 girte coluviellari breviter arcuato, dilatato, reflexo, ap- 

 preiso. 



Dbixg's Helix. Shell uitli a covered umbilicus, de- 

 [iressed, thin, fragile, very closely finely j)licated at 

 the upper part, whitish, opake, encircled with trans- 

 parent lines ; spire rather flattened ; whorls four to 

 five, scarcely convex, the last a little compressed at 

 the side, smooth and inflated at the base ; aperture 

 lunar; lip simple, slightly thickened, columellar mar- 

 gin shortly arched, dilated, reflected, appressed. 



Pfeiffer, Symbols, vol. iii. p. 73. 



Hah. Torres Straits, East Australia (under decayed leaves); 

 Dring. 



A delicate flatly globose opake-white species, encircled 

 with pellucid bands and lines. The specimen here figured 

 from Mr. Cuming's collection is the only one at present 

 known. 



Species 770. (JIus. Cuming.) 



]Ielix infrendeks. Eel. tesld imperforald, orbiculatd, 

 depresso-conoided, conieo-virescente, sitbcarinatd, supra 

 rugoso-slriatd, subtus glabrd, niddd, regione iimbilicali 

 excavatd ; anfractiius septem, convexiusculis ; suturd 

 impressd ; aperturd coarctatd, Ubro vix reJlexo,calloso, 

 margbte basali sinuato, deut'dim complanatis majoribus 

 nonnullisque minoribus munito. 



The TEETH-GXASIIIXG Helix. Shell imperforated, or- 

 bicular, depressly conoid, homy-greenish, slightly 

 keeled, roughly striated above, smooth beneath, shin- 

 ing, region of the umbilicus excavated ; whorls seven, 

 rather convex; suture impressed ; aperture contracted, 

 lip slightly reflected, callous, basal margin sinuated, 

 furnished with two larger smooth teeth and some 

 smaller ones. 



Goi;ld, Journ. Nat. Hist. Soc. Boston, U.S., vol. iv. p. Voi. 

 pi. 24. f. G. 



Hab. Tavoy, Burmah. 



A small species, having the lip much appressed upon 



October, 



the body-whorl, and still further contracted by siuall 

 teeth. 



Species 771. (Mus. Cuming.) 



Helix GLauca. lid. iestd aubumbilicald, orbiculalo-co- 

 noidedy glaberrimd, nilidd, glaucescente-hyalind ; tpird 

 eletuld, aculiusculd ; anfradibus sex, convexiusciiliii, 

 uliiino multo laliore, rolundato ; aperturd sidwerticali, 

 lunari ; peristomatt simplici, redo, murgine columeUari 

 vix dilatato, perforalionem fere daudente. 



The glaucous Helix. Shell slightly umbilicatcd, or- 

 bicularly conoid, very smooth, shining, pale glanc<)U> 

 hyaline ; spire raised, rather sharp ; whorls sis, rather 

 convex, the last much broader and rounder ; aptrtun- 

 subvertical, lunar ; lip simple, straight, columejliir 

 margin a little ddatcd, almost closing the umbilicus. 



Nanina glauca, Benson, Pfeiffer, Symbola;, vol. iii. p. G.J. 



Hah. Almorah, Bengal. 



A transparent azure straw-coloured shell, tinged with 

 brown at the lip. 



Species 772. (Mus. Cuming.) 



Helix Reinga. Hel. tesld obtedi umbilicatd, globo»o-Je- 

 pressd, soUduld, obliqni slriatuld, albidd, fascia unicd 

 caslaned pluribiisque Uneis auranliis oriiatd ; npird ih/j- 

 elecatd; anfradibus quinque ad sex, concexiuscutis, 

 sensim accrescentibns, ultimo sublus courexo, aulice dr- 

 scendente; aperturd peroiliqud, angustd, subtriangiUalo- 

 lunari ; peristomale breviter txpanso, intus albo-tnbmto, 

 margine columeUari stridiusculo, obsoUti d ublusi imi- 

 dentato. 



Tue Reixga Helix. Shell with a covered umbllicu-i, 

 globosely depressed, sohd, obliiiucly striated, whitish, 

 ornamented with a chestnut band and numeruus 

 orange lines; spire rather elevated; whorls live Ik 

 sL\, rather convex, increasing by degrees, the lust 

 convex beneath, descending in front ; aperture verj- 

 oblique, narrow, somewhat triangularly lunar; lip 

 shortly expanded, white-edged within, columelhir 

 margin rather drawn out, obsolclcly and obtusely 

 one-toothed. 



Gray (Mus. Cuming). 



llab. New Zealand. 



.Vllied in general typical form to the //. Dringi from 



1852. 



