HELIX. 



Plate XIII. 



Species 67. (Fig. 46 a, Mus. Cuming.) 



Helix micans. Hel. testa imperforald, globoid, tenui, 

 /raff Hi, striatuld, Unek cotiferlissivm obiolele decmsatd, 

 diapliaiid, albidd ; spird panuld ; aiifractibm qualuor, 

 planimculis, rapide accrescentibus, ultimo itifiato ; colu- 

 vielld tenui, intrante, excavatd; aperlurd rotundaio- 

 lunari ; perislomate simplici, redo, margine dexlro 

 (mtrorsum subarcuato. 



The glittering Helix. Shell imperforated, globose, 

 thin, fragile, finely striated, obsoletely decussated 

 with verj' close-set lines, diaphanous, white ; spire 

 rather small ; whorls four, rather flattened, increasing 

 rapidly, the last inflated ; columella thin, entering, 

 excavated ; aperture rotundately luuar ; lip simple, 

 straight, right edge slightly arched forward. 



Pfeiffek, Pro. Zool. Soc. 1845, p. 71. 



Hab. Cagayau, Island of Luzon, Philippines ; Cuming. 



A delicate uncoloured shell with a sharp simple lip, 

 quite distinct from the species which follows. The error 

 in the numbering of the accompanjing figure is accidental. 



Species 46. (Tig. b, c, Mus. Cuming.) 



Helix aurata. Hel. testa imperforaid, depressd, tenia, 

 longittidinaliter et concentrice obsolete et coiifertim 

 striata, aured, fascid laid rubella prope sutiiram et 

 plerumque anijusld cccruled supra peripheriam ornatd ; 

 spird vix exsertd, apice oblusd, purpured ; avfraclibus 

 quatuor ad quinque, planiusculis, ultimo injlato, non 

 descendentibus ; columelld leviler arcuatd, excavatd, 

 albd ; aperturd parum obliqud, lunari ; peristomate 

 simplici, breviler expanso, margine supero antrorsum 

 dihtato. 



The gilt Helix. Shell imperforated, depressed, thin, 

 longitudinally and concentrically obsoletely and 

 closely striated, gold-tinged, with a broad pale red 

 band next the suture, and mostly ornamented with 

 a blue line at the periphery ; spire scarcely exserted, 

 apex obtuse, purple ; whorls four to five, rather 

 flattened, the last inflated, not descending; colu- 

 mella slightly arched, excavated, white; aperture 

 but little oblique, lunar; lip simple, shortly ex- 

 panded, upper edge dilated in front. 



SowEKBY, Pro. Zool. Soc. 1840, p. 100. 

 Eab. Island of Luzon, Philippines ; Cuming. 



Mr. Cuming collected only a vcrj- few of this species, 

 some with the light red band and blue ring, and some 

 without, as represented in the accompanying figures. 



Species 47. (Mus. Cuming.) 



Helix ponderosa. Hel. testa imperforatd, globoto-de- 

 pressd, tumidd, solidd, ponderotd, l<eviu»culd, striis in- 

 creme7iti et concentricis confertissimis vix compiaiit, 

 albd, basi epidermide nilidd pallide corned indutd ; 

 anfractibus quatuor ad quinque, contexiiuaiUs, ultimo 

 subangulato, fasciis albis hydroplianis infra angutum 

 interdum obsolete notato ; columelld recta, lata, per- 

 obliqud; aperturd subauriformi, inlits albd; peri- 

 stomate late rejlexo. 



The heavy Helix. Shell imperforated, globosely de- 

 pressed, swollen, solid, heavy, rather smooth, stria? of 

 growth and very close-set concentric stria; little con- 

 spicuous, wliite, covered towards the base with a 

 thin shining homy epidermis ; whorls four to five 

 in number, rather convex, the last slightly angled, 

 sometimes obsoletely marked with white hydropha- 

 nous bands beneath the angle ; columella straight, 

 broad, very oblicjuc; aperture subauriform, interior 

 white ; lip broadly reflected. 



Pfeiffer, Pro. Zool. Soc. 1845, p. 38. 



Hab. I'rovince of Ilocos, Island of Luzon, Philippines ; 

 Cuming. 



A stout unspotted shell, with an unusually broadly re- 

 flected lip. 



Species 48. (Pig. a, b, e, Mus. Cuming.) 



Helix AlIiaiexsis. Hel. tesid imperforald, depreao- 

 globosd, tenui, nititld, albd, unicolore rel fuiico-:onatd : 

 spird depressd ; siiturd lineari ; anfractibus quatuor, 

 planiusculis, ultimo sub/us inflnto ; columella tenui, 

 snbrectd, declivi, profunde excacatd: aperturd tunato- 

 ovali, margine supero aubdepresso ; peristomate late 

 reflexo, albo, margine subincrassalo, cum columelld an- 

 gulum distinct uiii foniiante. 



April, 1S51. 



