HELIX. 



Plate XLVI. 



Species 213. (Mus. Cuming.) 



Helix dilatata. Hel. tettd imperforala, oblique »uh- 

 ocata, graiiulalo-itriatd, pallidi luted, lineii confer- 

 lisiimii brunneis interniptU supra el infra fanciam 

 cuHcolorem medii anfracliis uliimi pictd, apice alhidd ; 

 npird parvd, obluniuiculd ; anfracl'dtu» quatuor, rapide 

 accreicenlihun, ullimo aiiiplimiimo ; columella albo-cal- 

 lo»d, slricld ; aperlurd maximd, oblique ocali, intus 

 lackd; periitoiiiale recto, mbiucrassato, margiiie dex- 

 tro antrorsum arcualo. 



The dilated Helix. Shell imperforated, obliquely 

 subovate, granulately striated, pale yellow, marked 

 with very close-set interrupted brown lines above and 

 below a band round the middle of the last whorl, 

 whitish at the apex ; s))ire small, rather obtuse ; 

 whorls four, rapidly enlarging, the last verj' large ; 

 columella white, callous, drawn out ; aperture verj' 

 large, obliquely oval, bluish-white within ; lip straight, 

 rather thickened, right margin arched anteriorly. 



Pfeiffer, Pro. Zool. Soc. 1845, p. 42. 



Hab. ? 



Of a peculiar obliquely inflated form, and the inter- 

 rupted marking with which its surface is covered are fine 

 hair lines, with a somewhat granular aspect. 



Species 214. (Fig. a, b, c, d, Mus. Cuming.) 



Helix lima. ffel. teHd imper/ora/d, orbiculato-subco- 

 iioided, solidd, griseo-fuicd, granulis albis coii/ertissi- 

 mi* exa»peratd ; anfracliius quatuor ad quinque, pla- 

 nulalif, ultimo obsolete carinato, anttce gibbo, suiitb 

 deflexo ; aperturd perobliqud, aiigusld, irregulariter 

 lunari ; perititomate incrassato, marginibui callo i«iui 

 junctia, supero rejlexo, basali late callow, iutrorsum 

 dilatato. 



The file Helix. Shell imperforated, orbicularly sub- 

 conoid, solid, greyish-brown, rougiiened with very 

 dose-set white granules ; whorls four to five, rather 

 flattened, the last obsoletely keeled, gibbous ante- 

 riorly, suddenly deflected ; aperture very obUque, 

 narrow, irregularly lunar ; lip thickened, margins 

 joined by a thin callous layer, upper margin reflected, 

 basal margin liroadly reflected, dilated interiorly. 



Febcssac, Hist. :Mo11. pi. 46. f. 1, 2, and pi. 46 A. f. 4, 5. 

 Helix punclifera, Lamarck. 

 Eadcm var. Helix incerla, Ferussac. 



Hab. Jamaica. 



Though always more or less granulated, this species u 

 extremely variable even in form. The variety ,| 



at Fig. 214 c, d, may be regarded as the i 

 species. In that at 214 a, b, representing H. mcerta, 

 Ferussac, the aperture is less obliquely proloogcJ, and 

 the callous thickening of the columellar margin is pro- 

 portionably abrupt and irreguhir. 



Species 215. (Fig. o, b, Mus. Cuming.) 



Helix Dominicensis. Hel. lestd imperforatd, tubobUqui 

 globoid, tenuiculd, concenlrici et tpiralUer obtoUli 

 striata, undiqite, preecipue versus opiarm, minute rngu- 

 loso-malleatd, opaco-albd, epidermide taiui fiitro- 

 (Bred fasciatd decidud indutd ; spird obtusd ; anfrae- 

 tibus quatuor, plano-courexis ; aperturd subquadralo- 

 lunari ; peristomate reflexo, margiiie columellari late 

 appresso, calloso. 

 The Domingo Helix. Shell imperforated, somewhat 

 obliquely globose, rather thin, concentrically and 

 spirally obsoletely striated, minutely wr ' ' 

 indented throughout, more particularly i 

 apex, opake white, covered with a thin deciduous 

 fulvous-bronze epidermis; spire obtuse; wl.r!- 

 four, flatly convex ; aperture somewhat s«jua.-. a 

 lunar ; lip reflected, columeUar margin broadly ap- 

 pressed, callous. 

 Pfeiffek, Zeitschrift fiir Malac. 1S50, p. 71. 

 Hab. Island of St. Homingo. 



An extremely interesting opakc while shell, coTered 

 with a bright fidvous cpidennis, encircled throughout with 

 delicate bronze bands, and a single narrow chi 

 at the peripher)-. The epidermis is peculiarly 

 and peels ofl" mostly in bands, as in the 5|)i-cimen rc|irc- 

 sented at Fig. 215 a. 



Species 216. (Fig.o, b, Mus. Cuming.) 

 Helix aNGCSTATA. Hel. tettd iaperforvlA, omtty-de' 

 prensd, carinatd, Jl<ir 

 fuscix undatis oruatii , . , 



eulLi. uUimo a latere compretto, antieijiibo, mMt^tn ; 



calloso, dilat-alo-opprrtio. 



September, 1S51. 



