HELIX.— Plate CXL. 



depreMo-orbiculari, rufescenie-corned, subtililer plicato- 



striata; spird convexd ; sutiird impressd ; atifraclibiig 



quatiwr ad quinque, convexis, sensim accrescentihua ; 



aperliird lunari-ovali, obliqud ; periitomate simplici, 



margiiiibm conniventibm. 

 TiiK siRKOUNDED Helix. SlicU perspectively umbili- 



catcd, dcpressly orbicular, reddish-horny, finely pli- 



cately striated ; spire eonvex ; suture impressed ; 



whorls four to five, convex, increasing gradually ; 



aperture lunar-oval, obli((ue ; lip simple, witii the 



margins approximating. 

 SiiCTTLEWoiiTH, Diag. Molluskcn, Xo. 1. p. 5. pi. 1. f. C. 

 Hab. Island of TenerifFe (under stones and dead leaves) ; 



Shuttlcworth. 



A bright reddish-horny rounded species, rather largely 

 umbilicated. 



Species 889. (Mus. Cuming.) 



Helix steph.vnopiioka. Ud. testa umbilicatd, conico- 

 globosd, olivaceo-corned ; anfractibus novem, anffuntui, 

 supeme creberrime oblique costalis, infra l<Bvibus ; um- 

 bilico parviusciilo, prof undo ; aperturd subanguste lu- 

 nari, laminarum brevium seriebus ad intervalla cequa- 

 lia interne munild ; peristomate simplici. 



The crowned Helix. Shell umbilicated, couically glo- 

 bose, olive-horny ; whorls nine, narrow, very closely 

 oljliquely ribbed on the upper surface, smooth be- 

 neath ; unibilieus rather small, deep ; aperture rather 

 narrowly lunar, furnished interiorly at equal distances 

 with rows of short lamelhc ; lip simple. 



Desh.wes, Ed. Ferussac, Hist. JIoll. vol. i. p. 111. 

 pi. 90. f. 8. 

 Helix calathus, Lowe. 



Huh. Madeira. 



Curiously distinguished by the presence of rows of short 

 inner laminae, placed throughout the shell at intervals like 

 cross internal varices. 



Species 890. (Mus. Cuming.) 



Helix consors. Hel. testa suhumbiUcatd, orbicukto- 

 convexd, superne coslulato-granulatd, basi lavigatd, 

 drialuld, vitidd, albo et fusco variegatd, subtiis palli- 

 diore ; spird convexd; anfractibus sex, convexiusculis, 

 ultimo rotundato, basi convexo, aiitice subito deflexo ; 

 umbUicn punctiformi ; aperturd lunato-ovali, intus 

 albd ; periMomate simplici, marginibus distanliim, su- 

 prro recto, basali reflexiusculo. 



TuE CONSORT Helix. Shell slightly umbilicated, orbi- 

 cularly convex, rib-like granulated at the upper part, 

 smooth at the base, finely striated, shioing, variegated 

 with white and brown, paler undemcalb ; spire con- 

 vex ; whorls sL\, rather convex, the last rounded, 

 convex al the base, suddenly deflected in front ; um- 

 bilicus puncture-like ; aperture luuar-oval, white 

 within ; lip simple, margins distant, upper maririn 

 straight, basal a little reflected. 



Lowe, Faun. Mader. p. 51. pi. 6. f. 3. 



Hub. Island of I'orto Santo, Madeiras. 



A chestimt-brown transparent horny species, mottled 

 with opake-white, and slightly granulated. 



Species 891. (Mus. Cuming.) 



Helix LAUTL's. Hel. testd umbilicatd, subglobosd, tultus 

 convexd, tenuiusculd, albd, fasciis anguslis interruptis 

 fuscis obsoletis ornatd, nitidiutculd ; suturd dittiucld ; 

 anfractibus quinque, convexis, conferliviime Iratuvertim 

 striatis, ultimo rotundato ; umiilico parvo, cylindraceo, 

 profunda, aperto ; aperturd lunatd, suirotundd; peri- 

 stomale acuta. 



The washed Helix. Shell umbilicated, subglobose, 

 convex beneath, rather thin, white, ornamented with 

 obsolete, narrow, inteiTupted brown bands, rather 

 shining ; suture distinct ; whorls five, convex, ven. 

 closely transversely striated, the last rounded ; um- 

 bilicus small, cylindrical, deep, open ; aperture lunar- 

 rounded ; lip sharp. 



Lowe, Faun. Mader. p. 53. pi. 6. f. 9. 



Hab. Island of Porto Santo, Madeiras. 



The interrupted brown band next the suture is mostly 

 well-marked. 



Species 892. (Mus. Cuming.) 



Helix dealbata. Hel. testa anguste umbilicatd, de- 

 pressd, striatuld, et granulis minulii undique exns- 

 peratd, solidiusculd, albidd ; spird parum eletatd ; an- 

 fractibus sex, phniusculis, ultimo supeme subangulato, 

 basi convexo, antice vix descendente ; aperturd subcir- 

 culari ; peristomate simplici, intus suilabiato, margini- 

 bus callo jiinctis. 



The whited Helix. Shell narrowly umbilicated, tie- 

 pressed, finely striated, roughened throughout with 

 niiinite graiiules, rather solid, wiiitish ; spire but 

 litlle raised ; whorls six, rather flat, the last slightly 

 angled at the up|)cr part, convex nt the base, u little 



