HELIX 



I'LATK (.XXXVll 



Species 854. (Mus. Cuming.) 



Helix lubid.\. Hel. (e»la mihgloljosu, depremusculd, 

 sul/tus coiivexa, umbilicatd, teniiiuscula, fusco-subfas- 

 ciatd, nUidiiisculd ; suturd diitiiicld ; anfractibus 

 qtdiique ad sex, convexis, miniitmime el obiotetUnimi 

 reliculato-graimlalU, ultimo rotundato, juxta siduram 

 (jranulato, injerne lavi ; umbilico parvo, cylindroceo, 

 prof undo, aperto ; aperturd lunari, subovali ; perUto- 

 mate dmplici. 



The lceid Helix. Shell somewhat globose, ratlier de- 

 pressed, convex beneath, unihilicated, rather thin, 

 faintly banded with brown, a little shining; suture 

 distinct ; whorls five to six, convex, very minutely 

 obsoletely reticulately granulated, last whorl rounded, 

 granulated next the suture, smooth beneath ; umbi- 

 licus small, cylindrical, deep, open ; aperture lunar, 

 suboval ; lij) simple. 



Lowe, Faun. Mader. p. 52. jil. 0. f. 5. 



Ilab. Island of Porto Sauto, Madeiras. 



The bands are of a reddish tinge and mostly two in 

 number. 



Species 855. (Mus. Cuming.) 



Helix polymorpua. IJel. te$ld umbilicatd, depresso- 

 pyramidaid, siriatd, yranuUs confertii mayk niinnme 

 exasperatd, supente fusco et alio marmoratd, bad aor- 

 dide alid, fuKO-fa^ciald ; anfractibus septein ad octo, 

 planulalis, ultimo acute carinato, antice subyibbo,subito 

 dejlexo, baai convexiuaculo, iiiterdum suhl<Bvigato ; um- 

 bilico infundibuliformi ; aperturd perobliqud, mbcir- 

 culari ; peristomate simplici, nmrginibua approximatii, 

 callo tenui junclis, baaali reflexo. 



The multiform Helix. Shell umbilicated, deijrcssly py- 

 ramidal, striated, more or less roughened with close- 

 set granules, marbled at the upper part with brown 

 and white, dead-white, brown-banded, at the base ; 

 whorls seven to eight, flattened, the last sharply 

 keeled, rather gibbous and suddeidy deflected in 

 front, slightly convex at the l)ase, sometimes rather 

 smooth ; umbilicus funnel-shaped ; aj)crture verj' 

 oblique, nearly circular; lip simple, with tiie mar- 

 gins approximating and joined by a thin callosity, 

 basal margin reflected. 



Lowe, Faun. Mader. p. 5t. pi. il. f. 11-1(1. 



Helix eleganlula, Jan. 

 Helix pulciiiata, Michaud. 

 Hab. Island of Porto Santo, Madeiras. 



The spire of this species is distinguished by a connivcly 

 impressed aspect. 



Species 856. (Mus. Cuming.) 



Helix aTTRIT.\. ffel.leitd umbilicatd, depretiid,muiut<: gra- 

 nulatd, grined, alho lentigin-jtd, infra fuaco unifateiald ; 

 anfractibui teptem, supcme concaco-imprenii, ad peri- 

 plteriam acute carinatis, deiiiJe concexis, anfraclu ul- 

 timo antice subith dejUxo ; aperturd obliqud, tubrircu- 

 lari ; peri^tomate vix expaiuo, marginibut approximn- 

 ti-i, callo tcnui junclin. 



The worn Helix. Shell umbilicated, depressed, mi- 

 nutely granulated, grey, freckled with while, cme- 

 banded beneath ^vith brown ; whorls sevcu, concavely 

 impressed at the upper part, sharply keeled nt the 

 periphcrj', then convex, last whorl suddenly deflected 

 in front ; aperture obli(|ue, nearly circular ; lip a 

 little expanded, margins approximating, joined by a 

 thin callosity. 



Lowe, Ann. and Mag. Nat. Hist. 1851, p. 110. 



Hab. Island of Porto Santo, Madeiras. 



The spire is pressed down so as to give a peculiar ele- 

 vation to the periphcrj' of the last whorl. 



Fig. 857. (Mus. Cuming.) 



This has been named //. aiprrula, but it proves to b« 

 a variety of H. polymorp/ia, in whicli the spire is mon 

 depressed. 



Species 858. (Mus. Cuming.) 



Helix roti'i..\. Hel. te»td oblecli umbilicatd, comtidf^- 

 depream, siriatd et granulia oblongiji obtild, nilidiut- 

 ruld, fulvd, luteo oinolete marmoratd etfatiii kouumI- 

 lia rujia anguilit circumdatd ; ipird depretto-couted, 

 suturd lineari ; anfraclibH-t octo, pl.mit, ultimo aculi 

 carinato, baai cix coiirrxiore, aiUice rotundato, tui- 

 giibo, ochraceo, lubUh dr/exo ; aperturd tumilo-tu6- 

 circulari, inlu* albo-callo*d ; periiiomaif alio, mar- 



November, 1S52. 



