HELIX.— Plate CLIX. 



The obvolote Helix. Shell openly umbilicated, orbi- 

 cular, flat on both sides, hrovm, opake, hairy ; spire 

 concave in the middle ; whorls six, narrow, rather 

 convex, the peuultirante whorl little prominent, last 

 whorl compressed, slightly descending in front, fur- 

 rowed ; aperture obtusely triangular ; lip reflected, 

 lilac-tinged within, right and basal margins obtusely 

 one-toothed. 



McLLEU, Hist. Verm. vol. ii. p. 27. 

 Helix trigonopltora, Lamarck. 

 Helix bilal/iala, Lamarck. 

 Helix holosericea, Gmeliu. 



Hal). Northeni and Central Europe. 



The original type, of which the two preceding and fol- 

 lowing species are also forms. 



Species 1050. (Mus. Cuming.) 



Helix holoserica. Hel. testa aperte umbilicatd, orbi- 

 culatd, depressd, suhlus convexd, corned, teiiui, Iiolose- 

 ricd; aufracliius quatuor ad quinque, plnmdatis, ul- 

 tinw antice comtricto, scrobiculato ; apertttrd trisiiiu- 

 atd ; peristomate lato, angulatim rejlexo, labialo, valide 

 bidentato. 



The velvet Helix. Shell openly umbilicated, orbicu- 

 lar, depressed, convex underneath, horny, thin, silky ; 

 whorls four to five, rather flat, the last constricted in 

 front, furrowed ; aperture trisinuous ; lip broad, an- 

 gularly reflected, edged, strongly two-toothed. 



Stcbeu, Verz. p. 16. Fcrussac, Hist. Moll. pi. 51. f. 5. 



Hab. Central and Southern Europe. 



The teetii arc more strongly developed in this than in 

 the preceding species of the same type. 



Species 1051. (Mus. Cuming.) 



Helix incabnata. Hel. testd umbilicatd, depresso-glo- 

 bosd, leviler carinatd, tenui, opacd, rufescente, pelluctdH 

 iinifasciatd, viinutiuimi gratiulatd ; ai{fracliius sex, 

 convexiusciilis, ultimo antice dejlexo ; aperturd lunari ; 

 peristomate acuto, subrejlexo, extus rufescente, inlus la- 

 bio incarnato. 



The flesh-tinged Helix. Shell umbilieated, dcpressly 

 globose, faintly keeled, thin, opake, reddish, trans- 

 parently one - banded, very minutely granulated ; 

 whorls six, rather convex, the last deflected in front ; 

 aperture lunar ; lip shai-p, slightly reflected, reddish 

 without, flesh-tinged along the edge withiu. 



MuLLEK, Hist. Verm. vol. ii. p. 03. 



Helix sericea, Miiller. 

 Helix st/hestris, Hartmann. 

 Helix tecta, Ziegler. 

 Hab. Germany, France, etc. 



Kather globosely inflated, dark-tinged next the suture. 



Species 1052. (Mus. Cuming.) 



Helix Rangiana. Hel. testa aperte umbilicatd, It-nlicu- 

 lari, acute carinatd, corned, coi{fertim radiato-striatS ; 

 anfractibus sex ad septem, conoexiuseulis ; aperturd 

 depresse lunari ; peristomate supemi simplici, sinuato, 

 ad carinam uncinatim recurvato, tnargine basali ineras- 

 sato, rejlexo, unidentato, extus scrobiculato. 



Eang's Helix. Shell openly umbilicated, lens-shaped, 

 sharply keeled, horny, closely radiatcly striated ; 

 whorls sLx to seven, rather convex ; aperture dc- 

 pressly lunar ; lip simple at the upper part, sinuated, 

 uncinately recurved at the keel, basal margin thick- 

 ened, reflected, one-toothed, furrowed without. 



Feeussac, Hist. JIoU. pi. 65. f. 1. 

 Helix Bangii, Ueshayes. 



Hab. Pyrenees. 



Peculiarly characterized by the sinuated and uncinately 

 recurved growth of the lip next the keel. 



Species 1053. (^[us. Cuming.) 



Helix peksonata. Hel. testa suboblecte umbilicatd, de- 

 presso-globosd, corned, opacd, pubescente ; spird vii 

 elevald ; anfractibus quinque, convexiusculis, ultimo 

 antice constricto ; aperturd coarctaid, anguUito-tri- 

 sinuatd; peristomate late replicato, intus calloso, bi- 

 dentato, iiiarginibus dente linguiformi transverse fert 

 junclis. 



The masked Helix. Shell with a partially covered rpi- 

 dermis, deprcssly globose, horny, opake, pubescent ; 

 spire a little raised ; whorls five, rather convex, the 

 last constricted in front ; aperture contracted, angu- 

 larly trisinuous ; lip broadly folded back, callous and 

 two-toothed within, margins almost joined by a 

 transverse tongue-shaped tooth. 



Lamarck, Journ. d'llist. Nat. pi. 42. f. 1. 

 Helix isognomostomos, pars, Gmeliu. 



JIab. Germany, France, etc. 



The aperture of tlus species is unusually contrncted by 

 the prominent tongue-shaped tooth across the body-whorl, 

 and the broad folding i)ack of the lip. 



