HELIX. 



Plate CXLII. 



Species 904. (Mus. Cuming.) 



Helix pclchella. Hel. tesld late umbilicald, suide- 

 pressd, aliidd, nilidd, glabrd ; anfracllhm trihiis ad 

 qualuor, conveximculis, uUimo antice dilalato, non 

 dejlexo ; aperlurd obliqud, subcirculari ,- perUtomate 

 rejlexo, cand'uU mhlabiato, marginibm approxinialis. 



The PiiETTY Helix. Shell broadly umbilicatcd, rather 

 depressed, whitish, shining, smooth ; whorls three to 

 foui-, rather eonvex, the last dilated in front, not de- 

 flected ; aperture oblique, nearly circular ; lip re- 

 flected, white-edged, margins approximating. 



MCLLEK, Venn. vol. ii. p. 30. 

 Helix pa ludosa, Walker. 

 Helix nitidula, Sluder. 

 Helix minuta, Say. 

 Helix crydalUna, Dillwyn. 



Hab. Europe, Madeiras, North America. 



A minute subglassy species, widely distributed through- 

 out the chief portion of the north temperate zone. 



Species 905. (Mus. Cuming.) 



Helix akcta. Hel. testa umbilicatd, depressd, dislincie 

 el con/ertim costiilaid, pallide corned, allo-marnwratd, 

 rufo-maculald el obsoUli fasciatd ; spird vix convexd; 

 aii/ractiius quinque ad sex, planiiisculis, ultimo cari- 

 fiato, basi convexiore, antice siibilo breviter dejlexo ; 

 umbilico punctiformi ; aperlurd perobliqud, lunato- 

 circulari, dente oblique intrante albo calloso coarciatd ; 

 peristomale acuto, rejlexo, intm albo-calloso, marginibus 

 fere conttguis. 



TnE SMALL Helix. Shell umbilicatcd, depressed, dis- 

 tinctly and closely finely ribbed, pale homy, white- 

 marbled, red spotted and obsolctcly banded ; spire 

 but little convex ; whorls five to six, rather fiat, the 

 last keeled, more convex at the base, suddenly shortly 

 deflected in front ; umbilicus puncture-like ; aperture 

 very oljlique, lunar-circular, contractcil by a narrow 

 tooth entering obliquely ; lip sharp, reflected, white- 

 callous within, margins almost contiguous. 



Lowe, Faun. Mader. p. \i. pi. 5. f. 7. 



Hab. Madeira. 



Much variegated in marking, chestnut-brown, freckled 

 with white. 



Species 906. (Mus. Cuming.) 



Helix armillata. Hel. iettd umbilicald, deprestd, ob- 

 lique elevato-striatd, castaneo-bniiined, aliido lenligi- 

 nosd; spird subobliud ; aiifraclibiu qualuor, subangu- 

 lalis, delude rolundalis ; aperlurd tubcirculttri, mar- 

 ginibus conmeenlibus, columellari paululum rejlexo. 



TuE BRACELET Helix. Shell umbilicatcd, depressed, 

 obliquely clevatcly striated, chestnut-brown, freckled 

 with whitish ; spire somewhat obtuse ; whorls four, 

 rather angled, then rounded ; aperture nearly cir- 

 cular, margins approximating, columellar margin a 

 little reflected. 



Lowe, Ann. and Mag. Nat. Hist. vol. ix. p. 113. 



Hab. Madeira. 



llesembling the preceding species in colour and mark- 

 ing, but of a more rounded form. 



Species 907. (Mus. Cuming.) 



Helix GuERiNiANA. Hel. testa lalUii. ' "' <i- 



bilicatd, depresso-pland, discoided, v, 



subcomed, supra maculis ruJU iesiellatd, u\fra pallide 

 strigatd; anfraclibus septem, angustis, costulaio-tlri- 

 atis, obtuse angulalii ; aperlurd pared, lunari ; peri- 

 stomale simplici, acuto. 



Glerin's Helix. Shell very broadly perspectively um- 

 bilic;ited, depressly flattened, discoid, whitish-brown, 

 subhorny, tessellated with red spots above, faintly 

 streaked l)eneath ; whorls seven, narrow, rib-like 

 striated, obtusely angled ; aperture small, lunar ; lip 

 simple, sharp. 



Lowe, Ann. and Mag. Nat. Hist. vol. ix. p. 115. 



Hab. JIadeira. 



A very characteristic discoid Plauorbis-WVa species, con- 

 spicuously tessellated on the spire with square red spots. 



Species 908. (Fig. 908 and 909, Mus. Cuming.) 



Helix uicarisata. Hel. testa umbilicala, TrocAi/ormi, 

 granuUs aspersis undique obsilti, brunned ; spird tlt- 

 vatd, scaltr/oniii ; ai^fractibut qumqw, bieariHalt^. ul- 

 timo antici subito dejtexo, basi vix coueexo ; r, 

 puiicliformi; aperlurd AorisoMlali, circulari : y,. ..-.- 

 male simplici, acuto, brecissbne undique tipauto, mar- 

 ginibus coHliuuis, solutii. 



November, 1S52. 



