HELIX.— Plate CXLIV. 



The strong clicsliiut lines which characterize this species 

 l)eing upon a tran3i)areul olive ground, arc unusually con- 

 spicuous. 



Species 929. (Mus. Cuming.) 



llEtix GYRi.\. llel. leatd aperle umbilicatd, orbiculata, 

 talde depreasu, supra plana, radiatim slriald, oliraceo- 

 fuscd; spird demersd ; anfractWitu stpiem, angualU, 

 anbaqualibm, bad convexiusculd, circa umbilicum an- 

 gulutd, kevi; aperlitrd semilunnri ; perhtomute reflvxo. 



The wnoHL Helix. Shell openly umbihcated, orbicular, 

 veiy depressed, flat above, radiately striated, olive- 

 , brown ; spire concavely sunk ; whorls seven, narrow, 

 nearly equal, rather convex at the base, angled and 

 smooth around the umbilicus ; aperture semilunar ; 

 lip reflected. 



RoTU, Diss. p. 16. pi. 1. f. 17, 18. 



Hab. Asia Minor. 



Of a peculiar discoid growth, with the spire sunk into a 

 slight hollow. 



Species 930. (Mus. Cuming.) 



Helix jiaritijia. Hel. tesld umbilicatd, conuideo-globom, 

 subcarinatd, albd, fasciis et macuUs strialis fitscis mtil- 

 timode rariante ; aiifracliliis quitiqiie, planiusculis ; 

 aperlurd rotundalo-lunatd ; perisiomate redo, acuta, 

 fusculo, intua albo-labiato. 



The maritime Helix. Shell umbilicated, conoid-glo- 

 bose, slightly keeled, white, variously painted with 

 brown bands and striated spots ; whorls five, rather 

 flat ; aperture rotundately hmar ; lip straight, sharp, 

 brownish, white-edged within. 



Draparnaud, Hist. Moll. p. 85. ])1. .5. f. !), 10. 



Hab. Island of Tenerifle, Canaries. 



This prettily-marked species is said to inhabit also the 



south of France. 



Species 931. (Mus. Cuming.) 



Helix foktunata. Hd. testa umiilieatd, leiiticulari, 

 carinald, striatd, vix niliduld; spird depresso-convexi- 

 usculd ; aufraclibiis quinque ad sex, plants, aeiisim ac- 

 crescenlibus, ultimo supra carinam iinpresso, autici sub- 

 dilaiato, subdijlexo ; aperturd perobtiqud, securiformi ; 

 peristomale subexpauso, supenii acuto, basi arcuato, re- 

 flexo, subincrassato, ad umbilicum modici dilalato. 



The fortunate Helix. Shell umbilicated, lenticular, 

 keeled, striated, a little shining ; spire dcpressly con- 

 vex ; whorls five to six, flat, increasing gradually, 

 last whorl impressed above the keel, slightly dilated 

 and a litthr deflected in front ; aperture very oblique, 

 hntchct-shaped ; lip rather expanded, sharp at the 

 upper part, arched at the base, reflected, slightly 

 thickened, moderately dilated at the umbilicus. 



SHLTrLEWORTH, Dlag. Mollusken, No. 1. p. 7. Mem. 



Conch, pi. 2. f. 4. 

 Hab. Island of Tenerifle, Canaries. 



The keel of this species is rather high up on the whorls, 

 giving a flattened Icus-likc aspect to the spire. 



Species 932. (Mus. Cuming.) 



Helix afficta. H<-1. tesld umbilicatd, discoided, lutes- 

 cente-conied, subpellucidd, minuliasime striatd, nitidd ; 

 spird pland ; au/ractibus quiiique ad sex, plaiiis, acu- 

 tissime alio-carinalis, ultimo subtus medio convexius- 

 culo, circa umbilicum mediocrem, pernio, obtuse angu- 

 lata ; aperlurd perubli/jud, securiformi ; peristomale 

 supenii simplici, acuto, basi arcuato, rejiexo. 



The framed Hr.Lix. Shell umbilicated, discoid, yel- 

 lowish-horny, subtrausparent, very minutely striated, 

 shining ; spire flat ; whorls five to six, flat, very 

 sharply white-keeled, last whorl rather convex in the 

 middle beneath, obtusely angled round the umbilicus, 

 which is middling and open ; aperture very oblique, 

 hatchet-shaped ; lip simple and sharp at the upper 

 part, arched and reflected at the base. 



Ferussac, Hist. Moll. pi. 66. f. 5. 

 Carocollu planaria, Lamarck. 



Hab. Island of Teneriflfe, Canaries. 



Resembling the preceding species, but more sharply 



keeled. 



Species 933. (Mus. Cuming.) 



Helix polymorpiia. Hel. testd umbilicatd, depres*o-py- 

 ramidatd, striatd, granulis confertis magis minusve ex- 

 asperatd, superne fusco el albo marmoratd, basi sordide 

 albd,fusco-fasciald; anfractibus seplem ad octo, plauu- 

 lalis, ultimo acute carinalo, antice subgibbo, subith de- 

 Jlexo, basi convexiusculo, interdum suM^evigato ; umbi- 

 lico infundibuli/ori/ii ; aperlurd perobtiqud, subcirru- 

 lari ; peristomale simplici, marginibus approximatis, 

 callo tenni junctis, basal i rejiexo. 



The multiform Helix. Shell umbilicated, dcpressly 

 pyramidal, striated, more or less granulated, marbled 

 about the upper part with brown and white, dirty 

 white at the base, banded with brown ; whorls seven 

 to eight, rather flat, last whorl sharply keeled, slightly 

 gibbous in front, suddenly deflected, rather convex, 

 and sometimes smooth nt the base ; unibilirus fun- 

 nel-shaped ; aperture very oblique, nearly circular ; 

 lip simple, with the margins approximated, joined by 

 a thin callosity, basal margin reflected. 



Lowe, Faun. Mader. p. 5i. pi. C. f. 11-16. 



Hab. Madeira. 



A eharaeteristie granulated subconical species, with .i 

 rounded enamelled aperture. 



