HELIX. 



Plate CXXXVI. 



Species 844. (Mus. Cuming.) 



Helix nitidiuscula. Hel. testa umbiUcalS, depremo- \ 

 globosa, striata et pmiclutatd, Jlavidd, superne lhiei>' ' 

 rujis circumdatd ; anfractihm quiiifjue ud set, con- 

 vexis, ultimo bail subinjlato ; aperturd subcimdari ; 

 pemtomate simplici, ienui, margiiui coluniellari siib- 

 dilatalo, umbilicitm non occtdtante, basali subrejlexo. 



The shining Helix. Shell umbilicated, dcpressly glo- 

 bose, striated and finely punctured, yeUowish, en- 

 circled about the iipj)er part with reddish lines ; 

 whorls five to six, convex, the last somewhat inflated 

 at the base ; aperture nearly eii-cular ; lip simple, 

 thin, columcUar margin slightly dilated, not covering 

 the umbilicus, basal margin a little reflected. 



SowERBY, Zool. Journ. vol. i. p. .57. pi. 3. f. 4. 



Hab. Island of Porto Santo, Madeii-as. 



The aperture is nearly circular, and the umbilicus rather 

 open and deep. 



Species 845. (Fig. 845 and 846, Mus. Cuming.) 



Helix nivosa. Hel. testa imperforatd, globulosd, tentd, 

 irregulariter pallide rugoso-costulatd, luteo-fidvescente, 

 fusco interruple fasciatd ; spird conoided ; anfractibus 

 quitique, convexis, ultimo antice arcuatim dejlexo ; aper- 

 turd subcirculari ; peristomate simplici, marginibm 

 subcontiguis, callo tenui junctis, supero obtusiu.wulo, 

 columellari dilatato, roseo. 



The snowy Helix. Shell imperforated, globular, thin, 

 irregularly faintly rugoscly ribbed, yellowish-fulvous, 

 banded inteiTuptedly with brown ; spire conoid ; 

 whorls five, convex, last whorl arcuately deflected in 

 front; aperture nearly circular ; lip simple, with the 

 margins almost contiguous, joined by a thin callosity, 

 ujjper margin rather obtuse, columellar margin di- 

 lated, rose-coloured. 



SowEKBY, Zool. Journ. vol. i. p. 5fi. pi. 3. f 3. 

 Helix exalbida, Wood. 

 Helix phlebophora, Lowe. 



Hab. Island of Porto Santo, Madeiras. 



Tlie bands of this delicately wrinkle-ribbed species arc 

 more or less internipted. The appressed columellar mar- 

 gin is of a characteristic rose-colour. 



Species 847. (Mus. Cuming.) 



Helix ekcbescens. Hel. (e»id imperforatd, deprtuo- 

 globosd, riiguloso-striald et mallfald, roseo-fulvd, nrpr 

 fasciii iiilerruplis oniatd ; spird vix eletald, oitiuti , 

 aiifrac/ibM quatuor ad quinque, contexiuKulit, ultimo 

 magno, antice nix descendenle ; aperturd lunalo-sultcir- 

 ailari ; peristoiiiale acuta, cameo, inliu mblabiato, 

 margiiie supero expunsiiisculo, columellari subplaniilalo. 



The blushing Helix. Shell imperforated, depn-ssly 

 globose, roughly striated and indented, rosc-fvilvous, 

 often ornamented with interrupted bands ; spire a 

 little raised, obtuse ; whorls four to five, rather con- 

 vex, the last large, scarcely descending in front ; 

 aperture lunar-subcircidar ; lip shaq), flcsh-tintred. 

 thickened inwardly, upper margin rather expanded, 

 columellar margin somewhat flattened. 



Lowe, Faun. Mader. p. 40. pi. 3. f 3. 



Hab. Madeira. 



In fine condition this species is adorned with flakes of 

 white epidermis. 



Species 848. (Fig. 848 and 849, Mus. Cuming.) 



Helix Bulweriaxa. Hel. testa umbilicatd, >■ 



solidiuscnld, minutiin striatd et sub lente jinnn.iv.,, „ 

 granulatd, fnhd, fusco varie fasciatd et mormorald : 

 spird hemiipluBricd, obtusd ; suturd obtoletd ; a»frar- 

 tibits octo, plan is, august is, subrfqtialibus, ultimo acuti 

 carinato, sublux planulato ; aperturd subcirculari ; pe- 

 ristomate superne simplici, r • ''»•«» 



jiinclis, basali incrassato, ail _ ■ prr- 



vium subrejlexo. 



Bclwer's Helix. Shell umbilicated, semiglobost-, rather 

 solid, minutely striated, and, beneath the lens, wrs 

 minutely granulated, fulvous, variously banded and 

 marbled with brown; spin- hemispherical, obtuse, 

 suture obsolete ; whorl,-* eight, flat, narrow, nearly 

 equal, the last sharply ki-eled, flattened l>cneath , 

 aperture nearly circular ; lip simple and straight nt 

 the upi)er part, margins joined by a thin callosity, 

 basal ni.iri^'in thiekencd, a little n-flictcd next the 

 umbilicus, which is narrow and open. 



Lowe, Faun. Madcr. p. 44. pi. 5. f U. 

 Caroeolla rariegata, Mcnkc. 

 Eadeni, Helix testudinnlis, Lowe. 



Hab. Island of I'orto Santo, Madeiras. 



November, 1852. 



