HELIX. 



Plate CLIX. 



Species 1045. (Mus. Cuming.) 



Hellx Nautiliforjiis. Eel. tedd umbilkatd, depressd, 

 suborbiculatd, arcle obvoluid, corned, h'upidd; tpird 

 immersd ; anfractibus quiiiqite, superne vix contpicuis, 

 ultimo mayno, reliquos involveiile; iimiilico perapeclivo ; 

 aperturd subverlicali, aiigusie lumtri; perutonia/e ru- 

 bello-fusco, reflexo, margine dexlro sttpenii- ditalalo. 



The Naltili's-siiaped Helix. Sliell uinbilicatcd, de- 

 pressed, nearly orbicular, verj' obvolutc, horny, hairy ; 

 spire immersed ; whorls five, but little conspicuous 

 at the upper part, the last large, involving the rest ; 

 umbilicus perspective ; aperture nearly vertical, nar- 

 rowly lunar ; lip reddish-brown, reflected, right mar- 

 gin arcuately dilated at the upper part. 



Drepanostoma Nauliliforme, Poito, Malac. p. 23. pi. 1. f. 3. 

 Uelix Nauiill/onnis, Cantraine. 



Hab. Lombardy. 

 A small discoid homy shell, with the spire completely 



immersed, as in Naulilus. 



Species 10-16. (Mus. Cuming.) 



Helix diodonta. Hel. testa late umbilkatd, discoided, 

 mimUim gratmlato-atriatd, corneo-fuacd ; anfractibus 

 quatuor ad quinque, convexitcsadis, ultimo vix mibcari- 

 nato, antice dejlexo, ad aperlurani constricto, superne 

 impreMo; aperturd aubhorizontali, panduraforrni ; pe- 

 ristomate acuto, rejl^xo, rubicundo, dentilus oppositis in 

 margine supero et infero munito. 



The opposite-toothed Helix. Shell uinbilicatcd, dis- 

 coid, minutely granulately striated, horny -brown; 

 whorls four to five, scarcely convex, the last slightly 

 keeled, deflected in front, constricted at the aperture, 

 impressed at the upper part ; aperture nearly hori- 

 zontal, pan-pipe-shaped ; lip sharp, reflected, ruddy, 

 furnished with two opposite teeth, one on the upper, 

 the other on the lower margin. 



MuHLFELDT, Mus. Cajs. Vind. F^russac, Hist. Moll, 

 pi. 51 A. f. 1. 



Hab. Banat, Hungary. 



A rather flat perspcctively umbilicated shell, with the 



aperture very horizontal and peculiar, contracted in the 



middle by two opposite teeth. 



Species IQH. (Mus. Cuming.) 

 Helix anoigyua. Hel. teddaperte umbilicatd, dincoided, 

 superne concavd, mbtua plana, pallide corned, superne 



minuliuime punciulatd et ilriolaia ; anfractibui sex, 

 convexis, ultimo compreuo, antice gibbo, tuiitu dejlexo ; 

 aperturd perobliqud, tubtriangulato-tunari ; perialo- 

 mate reflexo, albido-lahiato. 



The nakrow-whorled Helix. Shell openly umbili- 

 cated, discoid, concave at the upper part, flat under- 

 neath, pale homy, miimtely punctured and striated 

 about the up])er part ; whorls sLx, convex, the last 

 compressed, gibbous in front, suddenly deflected ; 

 aperture very oblique, subtriangularly lunar ; lip re- 

 flected, white-edged. 



ZiEGLER, Rossmiisler, Hist. Moll. vol. i. p. 70. f. 21*. 



Uab. North Italy and Switzerland. 



-V shell of PfenoriM-like growth, all the whorls being 

 convoluted on a plane, and more or less immersed in the 

 last whorl. 



Species 1048. (Mus. Cuming.) 



Helix Coecybejjsis. Eel. testa aperte umbilicatd, orbi- 

 culato-depressd, arctispird, supra costulato-striatd, cor- 

 ned, hispidd ; anfractibus septem, convexiusculis, ultimo 

 superne obtuse angulato, subtus convexo, antice gibbo, 

 de/lexo ; aperturd parum obliqud, angutid, lunari ; pe- 

 ristomate flexuoso, albo-labiato, reflexo. 



The Corfu Helix. ShcU openly umbilicated, orbicu- 

 larly depressed, close-spired, rib-like striated above, 

 honiy, hairy ; whorls seven, rather convex, the hist 

 obtusely angled at the upper part, convex under- 

 neath, gibbous iu front, deflected ; aperture a little 

 oblique, narrow, lunar; lip flexuous, white -edged, 

 reflected. 



Pautsch, Mus. Cies. Vind. Ferussac, Hist. Moll. (Des- 

 hayes' edit.) p. 21. pi. 69 E. f. 1-5. 



Helix contorta, Zicgler (not of Ferussac). 



Eab. Corfu. 



Allied to the preceding species, but closer and more 

 swollen. 



Species 1049. (Mus. Cuming.) 



Helix obvoluta. Eel. testa aperii umbUicatd, orbicu- 

 latd, utriuque plana, bruuHtd, opacd, pUosd ; tpird me- 

 dio coHcaed; anfractibus sex, amjustis, coHCtxiusculis, 

 penullimo prominulo, ultimo compresso, antici cix de- 

 scendente, scrobiculalo ; aperturd obtuse triattgulari . 

 peristonwte reflexo, iHtus liiaciHO, margine dextro el 

 basali obtuse unidaitatis. 



May, 1853. 



