HELIX. 



Plate CXLV. 



Species 934. (Mus. Cuming.) 



Heli.x Ravergiensis. nel. testa umbilicatd, globoso- 

 depremt, tenui, mtbtiliter nigoso-drmtii, nub lente gra- 

 nulald, comeo-albida, pellucidd, fascia lata iubopacd 

 albidd ad sitliiram, atigmtiore alba ad peripheriam , 

 omatd ; anfractibus sex, convexiusculis, ultimo antici 

 suhdejlexo ; aperturd limato-rotundatd ; peristomate 

 acuta, expanso, Intus calloso-atbo, acute labiato, viar- 

 gine columellari dilatato, iimbilicum angustum peroium 

 semitegente. 



The Raveugian Helix. Shell urabiUcatcd, globosely 

 depressed, thin, finely rugosely striated, granulated 

 beneath the lens, horny-white, transparent, orna- 

 mented with a broad whitish subopake band at the 

 suture, and a narrow white band at the periphery ; 

 whorls six, rather convex, the last a little deflected 

 in front ; aperture lunar-rounded ; lip sharp, ex- 

 panded, callous-white within, sharply edged, colu- 

 meUar margin dilated, hall-covering the umbilicus 

 which is narrow and open. 



Feeussac, BuU. Zool. 1835, p. 21. 

 Helix limbata, Krynicki. 

 Helix Caucasica, Pfeiffer. 



Hab. Caucasia. 



Of an extremely delicate transparent straw-colour, stri- 

 ated and banded with opake-white. 



Species 935. (Mus. Cuming.) 



Helix nummcs. Hel. testa subumbilicatd, depressissimd, 

 subdiscoided, acute carinatd, tenuiusculd, conferlim ru- 

 goso-striatd, superne albido elfusco variegatd, basi pal- 

 lida lividd ; spird vix elevatd ; anfractibus quiuque ad 

 sex, planis, non exsertis, ultimo basi vix ventricosiore, 

 anlice non descendente ; aperturd depressd, angulato- 

 luiiari ; peristomate tenui, marginibus subparallelis, 

 supero recto, basalt breviler rejlexo, columellari vix di- 

 latalo, rejlexo, appresso. 



The money Helix. Shell slightly umbilicated, very de- 

 pressed, subdiscoid, sharply keeled, very thin, closely 

 roughly striated, variegated on the upper part witii 

 brown and white, pale livid at the base ; spire but 

 little raised ; whorls five to six, flat, not cxsertcd, 

 the last scarcely more vcntricose at the base, not 

 descending in front ; aperture depressed, angular- 



lunar ; lip ihin, margins nearly parallel, upper margin 

 straight, bnsal margin shortly reflected, columi-llar 

 margin a little dilated, reflected, oppressed. 



Eurenbeko, Symb. Phys. Moll. Pfeiffer, Hel. viv. vol. i. 

 p. 209. 

 Helix Hedenborgi, PfcilTer. 



Hab. Syria, Egj'pt. 



Peculiarly characterized on the upper part with a pro- 

 fusion of cur\'ed opake-white stria; upon a sublransparent 

 homy ground. The keel is also opake-white. 



Species 930. (Mus. Cuming.) 



Helix pbatensis. Hel. testd umiilicata, orbiculato-coH- 

 vexd, ruguhso-striatd, albidd, fasciit cattanei* cinela . 

 spird subelevatd ; anfractibus - 'is, ultimo 



antice vix descendente; m-, , pertio ; 



aperturd rotundato-lunari ; peristomate expanto, ihImh 

 remote alio-tabiato, marginibus conmtmtibiu, columel- 

 lari dilatalo. 



The meadow Helix. Shell umbilicated, orbicularly 

 convex, rugulosely striated, whitish, encircled with 

 two chestnut bands ; spire somewhat raised ; whorls 

 six, rather convex, the last slightly ■! ' : in 



front ; umbilicus middling, open ; aj ' an- 



dately lunar ; lip expanded, remotely white-edged 

 within, margins approximating, columellar margin 

 dilated. 



Pfeiffeu, Pro. Zool. Soc. 1815, p. 132. 



Hab. Banks of the river Tortoom, .Vsiatic Russia. 



Not very unlike the widely-distributed H. limilarii. 



■ir- 



Species 937. (Mus. Cuming.) 



Helix Betiiencouutiana. Hel. testd oblreli umbilieald, 



tenui, orbiculato-depressd, luf- ■ ' ' ■ 



que brunneis interdum conji 

 nald, eleganler plicato-coslatd, cotlis t4m6iu; ipird 

 depressd ; anfractihus quatuor ad quinque, eoxtexitu- 

 cutis, ultimo anticf subilt) deflrxo ; aperturd subkon- 

 zontali, subotali ; peristomate nculo, expanso, rrjtexo, 

 fusco-violacfo, margitiibus coHniteHtibus, basali callom. 

 Betuencoikt's Helix. Shell obtusely urabilicnlcd, thin, 

 orbicularly depressed, villi iwish -brown, i>ninmcnt«i 

 with five brown bamis. ■^oinetinu ^ lliiwinu tO'_'ithcr, 



December, 1852. 



