HELIX. 



Plate VII. 



Species 27. (Mus. Cuming.) 



Helix chlorociiroa. Hel. testa imperforatd, mb- 

 globosa, tenuiuscitld, fulvidd vel paHidii brnnned, 

 albo-mamioratd et strigatd, epidermide cinereo-fuicea- 

 cente indutd ; spird semiglobosd ; anfractibus quattior 

 ad quinque, convexiusculU, ultimo ad peripheriam ob- 

 solete angulato ; columelld oblique arcuatd, denticu- 

 latd ; aperturd rotuudato-lunari ; peristomate siii- 

 incrassato, expa>iso,fusco. 



TuE YELLOWISH Helix. Shell imperforated, subglobose, 

 rather tliin, yellowish or pale brown, marbled and 

 streaked with white, covered with a light ash-brown 

 epidermis ; spire semiglobose ; whorls four to five, 

 rather convex, last whorl obsoletely angled at the 

 pcriplierj' ; columella obliquely arched, denticulated ; 

 aperture rounded-lunar ; lip rather thickened, ex- 

 panded, brown. 



SowERHY, Pro. Zool. Soc. 1841, p. 2. 



Hab. Island of Bohol, Philippines ; Cuming. 



It is somewhat doubtful whether this is not a light 

 unspotted variety of 11. Mindanaensis. 



Species 28. (Mus. Cuming.) 



Helix Cfvieriaka. Hel. testa umbilicatd, tenni, pel- 

 lucidd, oblique striatd, carinatd, olivaceo-lutescente, 

 infra carinam fascia lata rufo-viresce>ite,deorsum dilutd, 

 ornatd ; spird vix elatd ; anfractibus quinque, planu- 

 lati-s, ultimo basi couvexo ; aperturd laid, lunari; peri- 

 stomate simplici, acuto, margine columellari breviter 

 reftexiusculo. 



Cuvier's Helix. ShcU umbilicated, thin, pellucid, ob- 

 liquely striated, keeled, olive-yellow, ornamented 

 \vith a broad red-green band beneath the keel, di- 

 luted below ; spire scarcely raised ; whorls five, 

 flattened, last whorl convex at the base; aperture 

 broad, lunar ; lip simple, sharp, columcllav edge 

 shortly reflected. 



Lea, Trans. Amer. Phil. Soc. vol. vii. p. 401. pi. ]3. f. 12. 



Hab. Island of Luzon, Philippines ; Cuming. 



A thin convexly flattened shell, very sharply keeled at 

 the periphery, of a rich horny-green colour underneath. 



Species 29. (Mus. Cuming.) 

 Helix fclvida. Hel. testa subumbilicatd, globoso-tur- 



binatd, tenui, pellucidd, pallidefuhescente, supenii sub 

 lenle cotifertissime granulosa, basi glaird, iiitidd ; tpird 

 subelatd, apice oblusd; anfractibus quinque ad sex, 

 supremis planis, ultimo rotundato ; aperturd lunari ; 

 peristomate simplici, margine columellari subincrastalo, 

 ad perforationem obsoletam reflexo. 



The FCLVois Helix. Shell slightly umbihcatcd, glo- 

 boscly turbinated, thin, pellucid, pale fulvous, verj 

 closely granulated beneath the lens at the upper part, 

 smootii and shining at the base ; spire slightly raised, 

 obtuse at the apex ; whorls five to six, the upper- 

 most flattened, the last rounded; aperture lunar; 

 lip simple, columellar margin rather thickened, re- 

 flected about the obsolete umbilicus. 



Ppeiffer, Pro. Zool. Soc. 1842, p. 87. 



Hab. Island of JLndanao, Philippines ; Cuming. 



This differs mainly from the preceding species in having 

 the surface miiuitely granidated, and in the whorls being 

 rounder and little keeled. 



Species 30. (ilus. Cuming.) 



Helix grandis. Hel. testa imperforatd, gloloso-turbi- 

 tiatd, solidd, ponderosd, striatd, nigricante-nifd, epi- 

 dermide griseo-fuscescente fasciatim obductd ; tpird 

 conicd, apice pallida ; anfractibus sex, cix conrexius- 

 culis, ultimo spird breviore, basi injlato, fortius striata ; 

 columelld certicali, brevi, sublortd ; aperturd late lu- 

 nari; peristomate tiigricante, late expanso, margiHe 

 ba.iali incrassato, rejlexo, cum columellari talde dila- 

 tato, albiJo, angulum obtusum formante. 



The large Helix. Shell imperforated, globosely turbi- 

 nated, solid, heavy, striated, blaekish-rcd, covered with 

 a greyish-brown e])i(lennis disposed in bands ; spire 

 conical, apex pale ; whorls six, rather convex, the 

 last shorter than the spire, inflated and more strongly 

 striated at the base ; cuiumella vertical, short, 

 rather twisted ; aperture broadly lunar ; lip blackish, 

 broadly expanded, basal margin thickened, rcflcctwl, 

 with the columellar edge strongly dilated, whitish, 

 forming an obtuse angle. 



Pfeiffer, Pro. Zool. Soc. 1845, p. 43. 



Hab. Near Bangui, Province of Locos, Island of Lu/on. 

 PhUii)piiie3 ; Cumiug. 



April, 1851. 



