HELIX.— Plate CLXXXI. 



dentissimi elevato-tlriald, albidd, fasciis roriieo-fuscis 

 tupra vifraque cingulald ; anfractibus quinque, ad lu- 

 tiiraiH iiiipremis, medio cariiialU ; aperturd necurifonni, 

 lahro niiiiplici. 



ScHOMBRi's Helix. Shell umbilicated, rather depresscJ, 

 vcrv densely eleviitely striated, whitisli, encircled above 

 and below with horu-browu bands ; whorls five, im- 

 pressed at the suture, keeled in the middle ; aperture 

 hatchet-shaped, lip simple. 



ScAccui, I'feifler, Mod. Helic. vol. i. p. ■H4. 



Ha6. Sicily. 



An opake white shell, cncirck-d with lifrlit horn-brown 

 bands, with a cord-like keel roui>d the periphery. 



Species 1251. (Mus. Pfeiffer.) 



Helix C.vuoNI. IM. lestd mimili iimltiUcnld, pi/rami- 

 dali-conicd, bani jdaititlatd, sordide alba ; aiifructibiis 

 decern, plano-decUvibus, dense oblique plicalo-slriatis, 

 ad periplieriam coiispiciie serrato-carinutis ; aperturd 

 depresso-secitri/onn i. 



Caron's Helix. Shell minutely umbilicated, pyramid- 

 ally conical, flat at the base, dead white ; whorls ten, 

 flatly slanting, densely obli(|uely plicately striated, 

 conspicuously serrately keeled at the periphery ; aper- 

 ture depressly hatchet-shaped. 



Desh-IYES, Encyclo])L'die ilethodicjue, vol. ii. p. 262. 

 Helix tiirrita, Eossraiisler. 



Hab. Sicily. 



A sharply conoid pyramid, like //. elala, but more ser- 

 rately striated over the keel. 



Species 1252. (Mus. Pfeiffer.) 



Helix blcosiuscula. Hel. tenia itiiibilica/d, nubdepreasd, 

 undique coiij'erlim elrf;anlis9ime costulato-slriatd, pal- 

 lide griied, apice corned ; niifraclibus quinque, con- 

 vexii ; aprrlnrd obliqiii liiiiari, labro niiiiplici. 



The slightly wrinkled Helix. Shell umbilicated, 

 rather depressed, very elegantly closely rib-like stri- 

 ated throughout, light grey, horny at the apex ; 

 whorls live, convex ; aperture obliquely lunar, lip 

 simple. 



MiciiAUD, Complement, p. 14. pi. 15. f. 11-14. 

 JJab. Central Pyrenees. 



Of simple form, elegantly sculptured throughout with 

 fine raised stria;. 



S|>ecies 1253. (Mus. Pfcifl"er.) 



Helix TROCIIOIDES. //<•/. Irald vmbilicatd, i/loboto-py- 

 ramidali, ba-ti plano-conrexd, albidd, interduia patlidi 

 fascia td ; tpird gitboblii*d, apice coned ; au/ractibiu 

 quinque ad sejr, conrexii, carina filiformi in/emi cine- 

 tia ; aperturd late lunari. 



TuE TROCHOID Helix. Shell umbilicated, flatly convex 

 at the base, globosely pyramidal, whitish, sometimes 

 faintly banded ; spire rather obtuse, homy at the 

 apex ; whorls five to six, convex, encircled at the 

 lower part with a thread-like keel ; aperture broadly 

 lunar. 



Poiret, It. Barbad. vol. ii. p. 29. 

 Helix conica, Hniparnaud. 

 Helicella solarium, Risso. 



Ilab. Southern Europe. 



Of a more globosely conoid form than the preceding 

 pyramidal species of this plate, the whorls being more con- 

 vex, and the cord-like keel round the basal periphery of 

 each less prominent. 



Species 1254. (Mus. Pfeiffer.) 



Helix Sykensis. Jlel. lesld umbilicald, orbiculalo-co- 

 noided, confertini oblique costulato-striatd. cariiiata, 

 albidd, spaJiceo marmorntd ; spird subdepressii. apice 

 acutd, corned ; anfractibus quinque, planulatis ; aper- 

 turd rolundalo-lumiri, labro siinplici. 



The Syra Helix. Shell umbilicated, orbicularly conoid, 

 closely obliquely rib-like striated, keeled, whitish, 

 marbled with fawn ; s))irc rather depressed, sharp and 

 horny at the apex ; whorls five, flat ; aperture rotun- 

 dately lunar, lip sini|)le. 



Pfeiffer, Symboliv, vol. iii. p. C9. 



Ilab. Island of Syra ; Forbes. 



A rather flatly depressed slmrply-onglcd conoid shell, 

 obliijuely rib-striated throughout. 



