HELIX. 



Plate L. 



Species 235. (Mus. Cuming.) 



Helix pictcbata. Hel. testa imperforatd, depremj-or- 

 biculari, ad periplieriam rotundatd, undique creberrime 

 granulosa, riifo-castaned, epidermide tenui hydropJtand 

 albidd undato-radiatd ; spird obiusd ; anfracliius 

 quini/ue ad sex, uUimo infra lobrum quadri-.icrobicu- 

 lato ; aperturd horizoniali, angunle lunari ; labro re- 

 flexo, baaali calloso, quadridentato. 



The speckled Helix. Shell imperforated, depressly 

 orbicular, rounded at the periphery, very closely 

 granuled throughout, red-chestnut, rayed in a zigzag 

 manner with a light hydrophanous whitish epidermis; 

 spire obtuse ; whorls five to six, the last four-furrowed 

 beneath the lip ; aperture horizontal, narrowly lunar ; 

 lip reflected, basal Lp callous, four-toothed. 



Adams, Contributions to Conchologj^, No. 2. p. 30. 



Hob. Jamaica. 



Readily distinguished by a conspicuous zigzag pattern, 

 derived from an overljTng light hydrophanous epidermis. 



Species 236. (Fig. a, b, Mus. Cuming.) 



Helix Schkoeteeiana. Hel. testa imperforatd, de- 

 presso-orbiculnri, ad peripheriam obtuse caritiatd, so- 

 lidd, obsolete granulaid, olivaceo-castaned, zona luteold 

 dngulatd ; spird convexd; anfractibus quinque, ultimo 

 anttce defiexo, infra labrum scrobiculato ; aperturd 

 horizontali, oblongo-lunari ; perislomate incraiisato, re- 

 flexo, niarginibus callo tenui junctis, basali expaiuo, 

 appresso, intus quadridentato, detttiius duobus anticis 

 basi approximatis et callosis. 



Schroeter's Helix. Shell imperforated, depressly or- 

 bicular, obtusely keeled at the periphery, solid, ob- 

 soletely granuled, olive-chestnut, encircled with a 

 yellow zone ; spire convex ; whorls five, last whorl 

 deflected in front, furrowed beneath the lip ; aperture 

 horizontal, oblong-lunar; lip thickened, reflected, 

 margins joined by a thin callous layer, basal margin 

 expanded, oppressed, four-toothed within, the two 

 front teeth approximated and callous at their base. 



Pfeiffer, Pro. Zool. Soc. 1S45, p. •1-4. 



Hab. Jamaica. 



A solid olivaceous-tinted shell, with the lip strongly 

 coloured with a swarthy flesh-colour. 



Species 237. (Mus. Cuming.) 



Helix TUMIDA. Eel. tentd imperforatd, gk. . ., y.- 

 striatd, nilidiusculd, alia, epidermide fulco-oliraced 

 indutd ; spird parvuld, elerald, apice midd ; anfrac- 

 tibus quinque, tumidis, ultimo permagno ; columelia 

 sttbcerticali, elongatd, alio - caltosd, basi tubtortd ; 

 aperturd ampld, lunato-rotundatd, intus atruleictnte , 

 peristomate simplici, recto, margine dextro arcualo. 

 basali cum columelld angulum formante. 



The swollen Helix. Shell imperforated, globose, ni- 

 gosely striated, rather shining, white, covered with a 

 fulvous-olive epidermis ; spire rather small, rai^-d, 

 apex deprived of epidermis ; whorls five, swollen, the 

 last very large; columella subvertical, elongated, white- 

 callous, slightly twisted at the base ; aperture large, 

 lunar-rounded, bluish within; lip simple, straight, 

 right edge arched, basal edge forming an angle with 

 the columella. 



Pfeiffer, Pro. Zool. Soc. 1S45, p. 130. 



Eab. West Indies ? 



A light inflated shell, with a peculiarly contorted ap- 

 pressed columella. 



Species 238. (Fig. a, b, Mus. Cuming.) 



Helix sokor. Eel. testd umiilicatd, depretid, Ifnticnlari, 

 acute carinatd, oblique striata, granulatd, riotaceo- 

 fiiscd, medio lati albido-ciiigulatd ; anfractibus qualuor 

 ad quinque, plattulatis, ultimo onti ^ -r 



convexo, antice scrobiculato ; aperturd 

 tied; peristomate subincrassato, marginibu* eaUojnue- 

 iis, supero sinuoso, expanso, basali •■ ' > 



mediocrem semilegenle, dentiius trqu 

 lamelliformiius, intrantiius arcuato. 



The sister Hei.ix. Shell urabilicated, drr- ' ' ' 

 ticular, sharply kc<'lc<l, obliquely striated, 

 Wolet-brown, broadly encircled with white ri>uiiii tiir 

 middle ; whorls four to five, rather flat, the kst de- 

 flected in front, but little convex at the base, fur- 

 rowed anteriorly; aperture horiz.ontal, ■ 

 rather thickened, margins joinnl by n en 

 upper margin sinuous, expanded, basal reflected, 

 half-covering a middling ' ' ' 

 entering teeth, which nn- \. 



Fekcssac, Hist. Moll. pi. 54. f. 4. 



October, 1851. 



