IIELiX, 



Plate C'CVI. 



Species 1-151. (Mus. Brit.) 



Helix Stoddakti. IM. lenld impfrforala, di-presso-tiir- 

 biiudd, HolUld, leviter riit/om, niluliild, Itriiiiiied, pnllidi 

 fanciala, vel Jlavescenle, /Mciia laluralioribM ; apird 

 di'pri-KHO-conlcd ; aiifrac/iiiis i/uiiK/iii', pUiniusciilin, basi 

 coiicfxiore, medio aiigidoto ; aperliird linurri, Inhro 

 nimpUci, niargine coliimellari breviter rejlem 



Stoddaht's Helix. Shell iinpcifornlcil, dcpres>l_v tur- 

 binated, solid, slii^litly wrinkled, rallier shining, 

 brown, pale banded or yellow, with darker bands ; 

 spire dcpressly conical ; whorls five, rather flat, the 

 last more convex, angled in the middle ; aperture 

 lunar, lip simple, columellar margin shortly reflected. 



Gkay, Pro. Zool. See. 183t, p. 05. 



liaH). Phillip Island, Australia ; Cunningham. 



A shining yellow dcpressly trochoid shell, encircled 

 chiefly on the upper surface, with burnt chestnut bands. 



Species 1+52. (JIiis. Brit.) 



Helix gyrostojia. IM. tenia obtedi nmbilicald, ndj- 

 ylobom, soUduld, l/pi'i, nlbd, fn.tfiii.i f/iinfiior ret //iiiii- 

 que fulvicaiitihun iuterditm o/mole/e ciiignlnld ; aiifrac- 

 iibiis qidnqiie, convexiu»cidk, ul/imo imtlri subilo 

 nmlto deflexo ; tiperlnfd feri cirru/ari, laliro inrrns- 

 salo, lali lahiato, maryiiiibux roiUiiinh, rohimel/iiri 

 excatalo-expamo. 



The TiiiNED-MOUTH Helix. Shell with a covmil umbi- 

 licus, subglobose, rather solid, smooth, while, some- 

 times obsoletcly encircled with four or five yellowish 

 bands ; whorls five, rather convex, the Inst suddenly 

 mucli deflected in front ; aperture nearly circular, lip 

 tliickencd, broadly edged, margins continuous, colu- 

 mellar margin excavately expanded. 



Ferussac, Hist. jMoII. pi. 32. f. 5, 6. 



Hab. Tripoli. 



Opakc chalk-white, distinguished from its allies by the 

 continuous subcontracted growth of the thickened margin 

 of the aperture. 



4a«i injlato, autici deflexo ; aperlurd aubelliptica, lairo 

 aubiiicra»»alo,,marginibua coiUiniiu, aiipero expamo, 

 columellari tiibreflexo. 



Leach's Helix. Shell with a covered umbilicus, de- 

 pressed, convex above and below, obli(|ucly ribbed, 

 white, crenulately keeled ; whorls four, rather flat, 

 the last inflated at the base, and deflected in front ; 

 aperture subelliptie, li|) somewhat thickened, margins 

 continuous, upper margin expanded, columellar mar- 

 gin a little reflected. 



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

 Ilelix Tripoli/aiia, Wood. 

 Carocolla Tripoli/ana, Gray. 



Hab. Tripoli. 



Opake chalk-white like the preceding species, but de- 

 pressed, conspicuously compressly keeled round the peri- 

 phery, and distinguished especially by its numerous close- 

 set delicately wrinkled thread ribs. 



Species 1153. (Mus. Brit.) 



Helix Leaciiii. IM. testa obtecti iimiilicald, depreaad. 

 utrinque coiicexd, oliliqiie coatatd, albidd, rrrinilato- 

 cariiiald; anfractibiia qiiatiiur, phiiiiiandia, iittimo 



December, 1 *> 



Species U5+. (Fig. a, b, Mus. Brit.) 



Helix Clairvillia. llet. ieatd viedlorriler excarato- 

 umbilicald, aidigtoboao-turbinatS, inJlalA, tupenie ru- 

 goso-Iiratd, litis aubreiiiotia, fidceacenle, infra peri- 

 pherinm sal urate foaciatd ; aiifraetibus aex, coHcexis, 

 ultimo tumido ; apertiird rotuiidatO'lunari, labro >im- 

 plici, margiiie columellari decliri, rejiexiuaculo. 



Clairville's Helix. Shell moderately excavately um- 

 bilicatcd, subglobosely turbinated, inflated, wrinkle- 

 ridged on the upper part, ridges rather distant, ful- 

 vous, dark-banded below the periphery ; whorls six, 

 convex, the last swollen ; aperture mtundatcly lunar, 

 lip simple, columellar margin sbuting and slightly 

 thickened. 



Ferussac, Hist. Moll. pi. !•!. f. 1. 

 Naiiina Clairritlia, Gray. 



Ilab. Island of Amboyna. 



.\ boldly convoluted subinflated shell, of light texture, 

 with a simple lip, sculptured next the suture with plicated 

 rib-like stria-. The banded colouring is of a bright orange- 

 tinted fulvous-fawn. 



bpecii" 1 t.'ia. (Fig. a, b, Mus. Brit.) 

 Helix Chastelli. lift, leitd mediocriler Hmbilicald, 

 \ 



