HELIX.— Plate CXXXV. 



Species 838. (Mus. Cuming.) 



Helix Villiersii. Eel. tesld umhilicaid, orbiciilato-de- 

 pressfi, teniti, rtigosd, profundi el irregulariter plicald 

 (plicU oblitjiiis, actilia, interruptisj , fuico-coryied, lineis 

 amjuUia fusck vitlatd ; spird vix ekcald ; anfractibm 

 quinque, plattimculk, mtbcarinatU ; aperlurd perob- 

 liqiid, lumilo-ovali ; peristomate tenui, aciito, margine 

 supero erpanto, coluvielluri d'datalo, ad umbilicum 

 re/lexo. 



ViLLiERs' Helix. Shell umbilicated, orbicularly de- 

 pressed, thin, rough, deeply aud irregularly plicated 

 (plaits obliciue, sharp, and interrupted), brown-horny, 

 filleted with narrow brown lines; spire but little raised; 

 whorls five, rather flat, slightly keeled ; aperture very 

 oblique, lunar-oval ; lip thin, sharp, upper margin ex- 

 panded, columellar dilated, reflected at the umbilicus. 



D'Orbigny, Moll. Isles Canaries, p. 5. pi. .3. f. 12-1-1.. 



Hnb. Grand Canarj' Island. 



A worn discoloured specimen, showing the plaited 

 sculpture but indistinctly, is the only one I have been able 

 to procure of this species. 



Species 839. (Mus. Cuming.) 



Helix xanthodon. Hel. testa imper/oratd, subglobosd, 

 depressiusculd, alba, solid d ; spird contexd ; anfrac- 

 tibm quinque, convexiusculis, sensim accrescentibus ; 

 aperiurd rotunda(d,perobliqud, minusculd ; peristomate 

 reflexo, albo-laiiato, margine columellari calloso, uni- 

 denlalo. 



The yellow tooth Helix. Shell imperforated, sub- 

 globose, a little depressed, white, solid ; spire con- 

 vex ; whorls five, rather convex, increasing slowly ; 

 aperture rounded, very oblique, rather small ; lip re- 

 flected, white-edged, columellar margin callous, one- 

 toothed. 



Anton, Eossmiisler, Moll. vol. 0. p. 6. f. 363. 



Ilab. Oran, Algiers. 



A globose, solid species, with a conspicuously developed 

 oblong tooth on the columellar margin. 



Species 840. (Mus. Cuming.) 



Helix consodrina. llel. tesld imperforatd, globoso-de- 

 pressd, reliculaio-vialleald, fusco et Jlavido marmoratd 

 el obsolete fasciald ; anfractibus quatuor ad quinque, 

 convexiusculis, ultimo magno, ad nperluram conslriclo ; 

 aperlurd subhorizonlali, transverse auriformi, intus 

 nilidd, ccerulescenle ; peristomate late expanso, reflexo. 



roseo, marginiius suhparalUlis, basalt dilaMo, late 

 tuberculalo. 



The cousin Helix. Shell imperforated, globosely de- 

 pressed, reticulately indented, marbled and obsoletely 

 banded with brown and yellow ; whorls four to five, 

 rather convex, the last large, constricted at the aper- 

 ture; aperture rather horizontal, transversely ear- 

 shaped, shining and bluish within ; lip broadly ex- 

 panded, relleeted, rose-coloured, margins subparullel. 

 basal margin dilated, broadly tubercled. 



Ferussac, Hist. Moll. pi. 42. f. 2. 



Uab. Island of TcuerifTe, Canaries. 



Of a dark chestnut-colour, with little yellowish flames 

 emerging from the suture. 



Species 841. (Mus. Cuming.) 



Helix pellis-lacerti. Hel. tesld imperforatd, depres- 

 so-globosd, solidiusculd, undique corfertim subliliter 

 granulosa, tirenle-fuhd, fasciis saturate caslaneis or- 

 nald, slrigii albis epidermiilis lentigiuosd, apice purpu- 

 rascenle-rosed ; anfractibus quatuor ad quinque, con- 

 vexiusculis, ultimo injlato, antice breviter deflexo ; 

 aperlurd perobliqud, obtuse Iriangulari ; peristomate 

 fusco-cameo, incrassato, breviter reflexo, margine dexlro 

 ad inserlionem obsolete, in medio valiJi, tuberculalo, 

 basali stricliusculo, inlrorsum dilatalo, calloso. 



The lizard-skin Helix. Shell imperforated, depressly 

 globose, rather solid, closely finely granulated through- 

 out, greenish-yellow, ornamented with dark chestnut 

 bands, and freckled with white streaks of epidermis, 

 purple-rose at the apex ; whorls four to five, rather 

 convex, the last inflated, shortly deflected in front . 

 aperture very oblique, obtusely triangular ; lip brown, 

 flesh-tinged, thickened, shortly reflected, right margin 

 obsoletely tubercled at the insertion, strongly tuber- 

 cled in the middle, basal margin rather drawn out, 

 ddated inwards and callous. 

 Helix malleata, var. /3, Pfeiffer. 



Hab. Island of Lancerota, Canaries. 



Instead of being plicately wrinkled and indented, as in 

 H. malleata, the surface of this species is very closely 

 finely granulated throughout. 



Species 842. (Mus. Cuming.) 



Helix malleata. Hel. testa imperforatd, depresso-glo- 

 bosd, solidiusculd, undique oblique corrugatu-plicatd et 

 malleata, fuloescenle, castaneo fasciald, epidermide albd 



