HELIX. 



Plate XLV. 



Species 208. (Mus. Cuming.) 



Helix iL\cJIUBKAYi. Hel. testa imperforatd, globono- 

 turbinatd, tutnidimculd, lineis incrementi undique cre- 

 berrime driatd, lineis npiralibus impresm obsolete de- 

 cussatd, albd, epidermide fulvd corned decidiid indittd; 

 spird obtiisd ; anfractibus quinque, rolundalis, mpeme 

 subconcavis, suturis tenue niarginatis ; aperturd sttb- 

 orljiculari ; columelld callosd, subcontortd ; peristomate 

 simplici, acitto. 



M'Mcrray's Helix. Sliell imperforated, globosely tur- 

 binated, rather swollen, very closely striated through- 

 out with lines of growtli, obsoletely decussated with 

 impressed spiral lines, white, covered with a fulvous, 

 deciduous, homy epidermis ; spire obtuse ; whorls 

 five, rounded, rather concave round the upper part, 

 sutures finely margined ; aperture nearly orbicidar ; 

 columella callous, rather twisted ; lip simple, sharp. 



Adams, Contributions to Conchology, No. 2. p. 32. 



Hab. Jamaica. 



iUlied to //. ttimida, from which it differs mainly in 

 being larger and of more solid growth. It is a subtrans- 

 parent blue-white shell, covered with a fulvous-olive homy 

 epidermis, inclined readUy to peel off in places. 



Species 209. (Fig. a, b, Mus. Cuming.) 



Helix ckassilabkis. He/, testd imperforatd, depressd, 

 crassd, ponderosd, irregnlariter slriatd et undique gra- 

 nulatd, albidd, lineis spiralibits, undulatis, fiiscis, fas- 

 cidque iinicd castaned ad peripheriam ornatd ; spird 

 vlx elecatd, dislincte granulafd, apice niidd, albd ; an- 

 fractibus quatuor ad quinque, planiuacuUs, senmni ac- 

 crescentibus, ultimo minutissime granulato, medio sub- 

 carinato, antice vix descendente ; aperturd obliqud, 

 semiellipticd, intus albd ; peristomate undique incras- 

 sato-rejlexo, margine dextro subsinuoso, columellari inltis 

 obsolete plicato. 



The thick-lip Helix. Shell imperforated, depressed, 

 thick, ponderous, irregularly striated and granulated 

 throughout, whitish, ornamented with brown waved 

 spiral lines and a single chestnut band round the 

 periphery ; spire but little raised, distinctly granu- 

 lated, naked and white at the apex ; whorls four to 

 five, rather tlat, enlarging gradually, last whorl very 

 minutely granulated, faintly keeled iu the middle, 



descending a little anteriorly ; aperture oblique, 

 semielliptical, white within; lip thickly rcflecicd 

 tliroughout, right margin rather sinuous, columcllor 

 margin obsoletely plaited within. 

 Uab. Cuba. 



A shell of heavy solid growth, well characterized by the 

 callous thickening of the lip. 



Species 210. (Mus. Cuming.) 



Helix corxu-militare. Eel. testd imperforatd, glo- 

 boso-depressd, solidd, striatd, sidcis imprestis nonnullii 

 cingulatd, albd, epidermide fused decidud indutd ; spird 

 brevi, obtusd ; anfractibus quinque, planiusailis, ultimo 

 basi injlalo ; aperturd rottindato-lunari, patulc, intus 

 nitide albd; peristomate simplici, reflexo, margine at- 

 pero arcuato, columellari calloso, valdi dilatato. 



The military horx Helix. Shell imperforated, glo- 

 bosely depressed, solid, striated, encircled with a few 

 impressed grooves, white, covered with a brown deci- 

 duous epidermis ; spire short, obtuse ; wiiorls five, 

 rather flat, the last inflated at the base ; aperture ro- 

 tundately lunar, wide open, shining white within ; lip 

 simple, reflected, upper margin arched, cohunellar 

 margin callous, much dilated. 



LiNNiECs, Syst. Nat. 12th edit. p. 1213. 

 Helix malum terra, Chemnitz. 

 Helix yigantea, Lamarck. 



Hah. ? 



This fine species, though kno»vn to Linnaeus, is still of 



very rare occurrence. The surface of the last whorl, in 



addition to the characters above recited, is sculptumi with 



long oblique indentations, which are worthy of notice. 



Species 211. (Fig. a, b, .Mus. Cuming.) 

 Helix AuDEnARDl. Ud. testd imperforatd, siibgloboio- 

 turbinatd, undique oblique cimn-Htrid striatd, apice 

 obtusd, all)d, epidermide casta/ I'romitcHe ni- 



gricante strigatd, indutd; anf ^ inque ad ttx, 



conrexis, ad suturas subiuipretsis ; aperturd subqua- 

 drato-lunari ; peristomate sHbincrasiaio, rtftexo, cam- 

 lescente-albo. 

 Aidebard's Helix. Shell imiicrfomtcd. somewhat glo- 

 bosely turbinated, ot)li<iucly ponivntrically striated 

 throughout, obtuse at the apex, white, covered with 



September, 1851. 



