HELIX. 



Plate XIV. 



Species 49. (Mus. Cuming.) 



Helix obtusa. Eel. tedd imperforatd, subglobosd, 

 lenui, striis incntnetiti et lineis impressis concenlricis 

 obaoletis subdecusmtd, niiidd, Itcte casianed vel albd ; 

 spird siibelevatd, obiusd ; anfraciibus quatuor, convexls, 

 ullimo injlato ; columella obliqud, aculd, albd ; aper- 

 titrd dilatatd, subauriformi ; perktomate simplici, ex- 

 paiiso. 



The obtuse Helix. Shell imperforated, subglobose, 

 thin, faintly decussated with striae of growth and 

 obsolete concentric impressed lines, shining, pale 

 chestnut or white ; spire somewhat raised, obtuse ; 

 whorls four, convex, the last inflated ; columella ob- 

 lique, sharp, white ; aperture dilated, somewhat ear- 

 shaped ; lip simple, expanded. 



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



Hai. Island of Luzon, Philippines ; Cuming. 



The pale chestnut colouring of this species is due to a 

 thin homy epidermis. 



Species 50. (Fig. a, b, Mus. Cuming.) 



Helix fenestrata. Hel. tedd imperforatd, globoao-tur- 

 binatd, solidd, crassd, nitidi casianed, epidermide hj- 

 drophand,fusculd, palUde fasciatd, indittd, macular urn 

 epidermide destitutarum iinicd aerie infra suturam fe- 

 neatratd ; spird turbinatd, oblusd ; anfraciibus quinque 

 ad sex, convexis, ultimo basi nudo ; columella declivi, 

 dilatatd, alid; aperturd perobliqud, lunato-ovali ; pe- 

 ristomate intus incrasmto, albo, nitido, breviter rejlexo. 



The windowed Helix. Shell imperforated, globosely 

 turbinated, solid, thick, shining cliestnut, covered 

 with a light banded browriisli epiderniis, windowed 

 with a row of bruised spots of epiderniis beneath the 

 suture ; spire turbinated, obtuse ; whorls five to six, 

 convex, last whorl void of epidermis at the base ; 

 columella slanting, dilated, white ; aperture very ob- 

 lique, lunar-oval ; lip tliickened within, white, sliin- 

 ing, shortly reflected. 



SowERBY, Pro. Zool. Soc. 1810, p. 137. 



Hub. Cagayan, Island of Luzon, Philippines ; Cuming. 



The bruised voids of epidermis which encircle the 

 whorls of tliis species beneath the suture, are of a similar 

 character to those obsen'ed in H. lignaria, Sp. 40. It is 

 constant in all examples of the species. 



Species 51. (Mus. Cuming.) 



Helix Ccmingii. Hel. testa imperforatd, depressd, ob- 

 tuse aiigulatd, apice obtusd, oblique striata, nigricanti- 

 rufd, epidermide fusculd, supeme maculis irregularihus, 

 basifasciis multis, omatd; anfraciibus quatuor, nupremit 

 planiuaculls, ultimo subinflato ; columella recti descen- 

 dente, late callosd; aperturd laid, subquadrangulari ; 

 perislomale late expamo, margine inferiore incrastato. 



Cuming's Helix. Shell imperforated, depressed, ob- 

 tusely angled, apex obtuse, obliquely striated, 

 blackish-red, ornamented with a light brown epi- 

 dermis showing blotches above and narrow bands 

 below ; whorls four, the uppermost rather flat, the 

 last a little inflated ; columella descending straightiy, 

 broadly callous ; aperture broad, subquadrangular ; 

 lip broadly expanded, lower edge thickened. 



Pfeiffee, Pro. Zool. Soc. 1842, p. 88. 



Hah. Island of Zebu, Philippines ; Cuming. 



An interesting dark chestnut-purple shell, in which the 

 epidermis is so inteiTupted on the upper surface of the 

 whorls as to show oblique oblong-square bald blotches, spi- 

 rally crossed with indiscriminate lines and narrow bands. 



Species 52. (Mus. Cuming.) 



Helix amicta. Ilel. testa imperforatd, depresso-conicd. 

 apice obtusd, albd, epidermide fultd corned immaculatd 

 nitente induld; anfraciibus quinque, rotundatis ; colu- 

 melld arcuatd, subprofundi intrante ; aperturd sub- 

 quadrato-ovatd ; peristomate rejlexo, albo. 



The clothed Helix. Shell imperforated, depressly 

 conical, obtuse at the apex, white, covered with a 

 shining horny unspotted fulvous epidermis ; whorls 

 five, rouuded ; columella arched, entering rather 

 deeply ; aperture somewhat S(|uarely oval ; lip re- 

 flected, white. 



Rah. Island of Tablas, Philippmes ; Cuming. 



This is certainly distinct from II. cxdlodes, with which 

 species it has been arranged. 



Ajjril 



Species 53. (Mus. Cuming.) 

 Helix platyodon. IM. testa imperforatd, depresso-tur- 

 binatd, minutissimi granulato-striatd, albd, fatciis 

 fuscis albo-guttatis ornata ; spird elevatd, obtusiuscul/i ; 



1851. 



