HELIX.— ?i,ATK CXXXII. 



tubiiiij/resso ; aperlurd siiicer/icali, late lunari ; peri- 

 Ktomate aimpUci, redo, oblusiunculo, viart/iiie boiali 

 dfclivi, supenii rejteio, umbiUcum fere occuUante. 



The silkv Helix. SlioU umbilicated, depressed, discoid, 

 fineiv and closely rib-like striated, somewhat silky, 

 frreyish-horny, rayed with irregular brown lines ; 

 spire Hat ; whorls four to five, convex, the last some- 

 what rounded, slightly impressed near the umbili- 

 cus ; apertui'e subvcrtical, broadly lunar ; lip simple, 

 straight, rather obtuse, basal margin slanting, re- 

 tlected at the upper part, almost concealing the um- 

 bilicus. 



I'l Eii-FEU, Pro. Zool. Soc. 1849, p. 127. 



Hah. Port Jackson, Australia ; Strange. 



iVllied in general character to the small New Zealand 

 type of the genus. 



Species 813. (JIus. Cuming.) 



Helix stipulata. Ilel. testa sulpyramidali-conica, ob- 

 lique costellalo-striatd, driis subremolis,fuscescen(e, ob- 

 scure maculaid, epidermide indutd ; atifractibus sex, 

 planulatis, ultimo bast angulato ; aperturd pai-vd, sub- 

 trigono-ovald ; perislomate simplici, juxta umbilicum 

 subexpaiiso. 



']"iiE THATCUED Helix. Shell somewhat pyramidally 

 ronical, obliquely rib-like striated, stria^ rather dis- 

 tant, light brown, obscurely spotted, covered with an 

 epidermis; whorls six, flattened, last whorl angled 

 at the base ; aperture small, somewhat triangularly 

 ovate; lip simple, a little expanded next the colu- 

 mella. 



Helix alplui, PfeilTer, Pro. Zool. Soc. 1851. 



Hnb. New Zealand. 



Distinguished from its numerous allies by its pyramid- 

 like conical fonn. 



Species 814. (Mus. Cuming.) 



IIli.ix harbatula. Hel. testa subangusie umbilicald, 

 pyramidali-conicd, oblique arcuatim costellalo-striald, 

 fuscescenie, viaeiilis rujis subquadralis tesscllatn, sub- 

 pilosd ; anfractibus sex, plaiialis, ultimo basi angulato; 

 nperlurd parvd, subtrigoiio-ovntd ; peristoma fe simplici. 



The finely beahded Helix. Shell rather narrowly 

 umbilicated, pyramidally conical, obliquely arcuately 



rib-like striated, light brown, tessellated with some- 

 what square red spots, a little hairy ; whorls six, 

 flattened, last whorl angled at the base ; aperture 

 small, somewhat triangularly ovate ; lip simple. 



Jlelix beta, Pleilter, Pro. Zool. Soc. 1851. 



Hab. New Zealand. 



This approaches very closely to the preceding species, 

 but it is more narrowly pyramidal and more sharply an- 

 gled at the base. 



Species 815. (Mus. Cuming.) 



Helix pcecilosticta. Ilel. testa obtecti umbHicata, py- 

 ramidali-conicd, oblique tenuissimi el ereberrimi ele- 

 vato-slriald, sericeo-fuscescente, carina aiigustd promi- 

 nente rufo-punctatd ad basin anfractuum cingulald ; 

 anfractibus sex, planulatis, ultimo angulato ; aperturd 

 transverse ovatd; perislomate simplici, prope eolumel- 

 lam dilatatu-reflexo. 



TjiE VARi-DOTTED Helix. Shell with a covered umbi- 

 licus, pyramidally conical, obli(iuely very finely and 

 closely elevately striated, light silky-brown, encircle<l 

 round the base of the whorls with a prominent nar- 

 row red-dotted keel ; whorls six, flattened, the last 

 angled ; aperture transversely ovate ; lip simple, di- 

 lately reflected. 



Pfkiffer, Pro. Zool. Soc. 1851. 



Hub. New Zealand. 



Neatly characterized by the narrow red-dotted necklace- 

 like keel. 



Species 816. (Mus. Cuming.) 



Helix Baruakporensis. Hel. tettd tix umbilieatd, py- 

 ramidali-conicd, tenuissimd, laevigata, pellucido-corned ; 

 anfractibus sex, planulatis, ad basin tenuicarinatis . 

 aperturd sublrigono-oraid ; perislomate simplici, juxta 

 columellam dilatato-rejlexo. 



TuE Bauhakpoue Helix. Shell scarcely umbilicated, 

 pyramidally conical, very thin, smooth, transparent- 

 horny ; whorls six, flattened, thlidy keeled at the 

 base; aperture somewhat triangularly ovate; lip 

 simple, dilately reflected next the columcUn. 



Pfehfeh, Pro. Zool. Soc. 1S51. 



llab. Barrakpore, India ; Bacon. 



A simple bright horny conical shell, finely keeled. 



