HELIX, 



Plate CXXXV. 



Species 834. (Mus. Cuming.) 



Helix G.\udkyi. Hel. testa imperforatd, depresio-glo- 

 bosd, striald, obsolete malleatd, supenie fusco-violaced, 

 maciilis violaceis in zonas dUpositis vel maculis albidit 

 oniatd; tpird brevi, obtusd; anfractibua quatiior ad 

 quinque, concexiiisculis, ultimo antice siibito dejlexo ; 

 aperturd perobliqud, lunato-oblongd ; peristomate sub- 

 incrauato, alba, marginibus aubparalUlis, mipero ex- 

 pamo, basali drictimculo, dilatato, appresso. 



Gacduy's Helix. Shell imperforated, deprcssly globose, 

 striated, obsoletely indented, brownish-violet at the 

 upper part, ornamented with violet spots aiTanged in 

 four bands, or with whitish spots; spire short, ob- 

 tuse ; whorls four to five, rather couvex, the last sud- 

 denly deflected in front ; apertm-e verj- oblicjue, lunar- 

 oblong ; lip rather tliickened, white, margins nearly 

 parallel, upper margin expanded, basal rather drawn 

 out, dilated, and appressed. 



D'Orbigny, Moll. Isles Canaries, p. 57. pi. 3. f. 15-17. 



Hab. Island of Teneriffe, Canaries. 



Of the four violet-tinged bands which characterize this 

 species, the lowest is nearly obsolete. 



Species 835. (Mus. Cuming.) 



Helix puxctulata. Uel. testa subobtecte umbilicatd, siii- 

 globosd, conceit trice lineatd, Jlavo-fuscd, fasciis saturate 

 brunneia vel nigricanlibm ornatd, epidermide seligerd 

 iiuliitd; spird breviu-sculd, suturd distinctd, depressius- 

 ciild ; anfractibus quinque, ultimo concexo ; aperturd 

 rotuiidato-lunari ; peristomate simplici, margine dextro 

 breviter expanso, columellari dilatato, alba, rejlexo. 



The dotted Helix. Shell with a nearly covered umbi- 

 Ucus, subglobose, concentrically lincatcd, yellowish- 

 brown, ornamented with two dark brown or blackish 

 bands, covered with a bristly epidermis ; spire rather 

 short, with the suture distinct and a little depressed ; 

 whorls live, the last convex ; aperture rotundatcly 

 lunar; lip simple, right margin shortly expanded, 

 columellar margin dilated, white, reflected. 



SowEKBY, Zool. Journal, vol. i. p. 56.pl. 3. f. 2. 



Eadcm subfossilis, Helix Boadickiana, Furussac. 



Hab. Porto Santo, Madeira. 



Covered, except at the base, with granular dots. 



Species 836. (Mus. Cuming.) 



Helix modesta. Hel. letld imperforatd, dtpreuo^lo- 

 bosd, tenui, reliculalo-malUatd, virenU-luted ; tpird 

 tubelevald ; anfractibus quatttor ad quinque, concfx- 

 iusculis, ultimo antice tubitu de/Uxo, basi sut/giiio ; 

 aperturd perobliqud, lunalo-ovati, iatus alba ; peri- 

 xtomate late expanso, refkxiusculo, alio ret roKO, Mar- 

 giniius subconniventiius, basali strictiiucitio, dilaiatt), 

 planalo. 



The modest Helix. Shell im|)crforated, dcprcssly glo- 

 bose, thin, reticulatcly indeulcd, greenish-yellow ; 

 spire a little raised ; whorls four to five, rather con- 

 vex, the last suddenly detlected in front, sliehtly 

 gibbous at the base ; aperture verj- oblique, lunar- 

 oval, white within ; lip broadly expanded, a little re- 

 flected, white or rose-tinted, margins somewhat ap- 

 proximating, basal margin rather drawn out, dihited, 

 flattened. 



Ferussac, Hist. Moll. pi. 42. f. 1. 



Hab. Island of Fuertaventura, Canaries. 



The surface of this species is peculiar in being finely re- 

 ticulatcly indented throughout. 



Species 837. (Mus. Coming.) 



Helix plicaria. Hel. testd oblecti umbilicatd, orbicu- 

 lato-depressd, violascente-fuscd, basi pallidiore, oblique 

 plicato-costald ; anfractibus qualuor ad quinque, am- 

 vexis, ultimo antice valde deflexo ,- apertur 

 zontali, angustd, subovali, inlus alba : y 

 acuta, ttugulatim latissime expanso, intus incrauato. 

 marginibus callojunctis. 



The plicated Helix. Shell with a covered umbilicus, 

 orbicularly depressed, violet-brown, paler at the liasc, 

 obliquely plicately ribbed ; whorU four to five, con- 

 vex, the last much deflected in front ; aperturt' ralht-r 

 horizontal, narrow, sub-ovnl, white within : lip ••harp, 

 very broadly angularly expanded, thickencil «i!hiii. 

 margins joined by a callosity. 



LAMARrK, Encyclopedic Methodique, pi. 462. f. 3. 

 Helix plicaluta, Lamon-k (in .Vnini. sans vert.). 

 Helix orbiculata, Wood. 



Hab. Island of TcnerifTc, Canaries. 



Strongly marked by it.s sharply wrinkled ploit-likr 

 sculpture. 



November, 1S52. 



