HELIX. 



Plate LVII, 



Species 275. (Fig. a, b, c, Mus. Cuming.) 



Helix Beumudensis. Ih'l. testa umbilicata, conoideo- 

 letdiculari, teyiulusculd, carinatd, leviler rugoloso- 

 slriaid, fmeescente, fulto-marmoratd, cingulo castaneo 

 supra et latlore infra carinam ornatd ; anfractibiis 

 septem, planiusculk, lente accrescentibna ; umbilico an- 

 ffusto, pervio ; aperlurd mblrapesid ; peristomate sim- 

 plici, redo, inltis incrassuto, albo, margbiibm callo 

 junctk, columellari verticali, brevi, reflexiusculo, cum 

 basalt angulum subrectum formanfe. 



The Bermub.^ Helix. Shell urabilicated, conoidly lens- 

 shaped, rather thin, keeled, slightly rugulosely striated, 

 pale-browu, marbled with fulvous, and ornamented 

 above and below the keel with a ehestnut baud, of whieh 

 the lower is the broader; whorls seven, flattened, 

 inereasing slowly ; umbilicus narrow, open ; aperture 

 subtrapeziform ; lip simple, straight, thickened in- 

 wardly, white, margins joined by a callosity, colu- 

 mellar margin vertical, short, a little reflected, form- 

 ing nearly a right angle with th(^ basal margin. 



Pfeiffek, Pro. Zool. Soc. 1845, p. ()7. 



Hab. Bermuda. 



The form of this species is very much like tliat of the 



little marine genus liotella. 



Species 276. (Mus. Cuming.) 



Helix Bahamensis. Hel. testa angaste wnbilicatd, de- 

 pressd, tenui, corned, costulato-striatd ; spird brevi, 

 convexiusculd ; atifractibm qualuor ad quinque, vix 

 coiivexiusculis, ultimo ai/tice deflexo ; aperturd sub- 

 horisontali, transverse uvali ; peristomate simplici, 

 tenui, marginibus approximalis, supero breviter expanso, 

 basali rejlexu, iiitus denle triangulari valido viunito, 

 columellari dilatato, rejlvxo, umbiUcum anguslum per- 

 vium semitegente. 



The B.vh.\ma Helix. Shell nan-owly umbilicated, de- 

 pressed, tliin, horny, ril)-like striated ; spire short, 

 rather convex ; whorls four to five, slightly convex, 

 the last deflected in front; aperture nearly horizontal, 

 transversely oval ; lip simple, tliin, with the margins 

 approximated, upper margin shortly expanded, basal 

 reflected, fiu-nishcd with a strong triangular tooth 

 within, columellar margin dilated, reflected, half- 

 covering a narrow open umbilicus. 



Pfeiffek, Pro. Zool. Soc. 1S45, p. 60. 



Hab. Bahama. 



A light horny shell, characterized internally by a peculiar 



oblonj; tooth. 



Species 277. (Mus. Cuming.) 



Helix nucleola. Hel. testa imperforatd, globoid, tolidd, 

 fusco-nigrescente, striatd ; spird sem'ujlobotd ; tulurd 

 lineari ; anfradibus quinque, summis plants, uUimo 

 tereti, antici de/lexo, basi cotustricto ; aperturd perob- 

 liqud, late lunari ; peristomate incrassato, marginibus 

 callo crasso, denteui Iriaiigularem emittenle, junctis, 

 dextro brevi, basali valde dilatato, denticulalo. 



The little nlt Helix. Shell imperforated, globose, 

 solid, brown-black, striated ; spire scmiglobose ; 

 suture linear; whorls five, the uppermost flat, the 

 last rounded, dcllected in front, drawn out at the 

 base ; aperture very oljlique, broadly lunar ; lip 

 tliickened, margins joined by a thick callosity, emit- 

 ting a triangular tooth, right margin short, basal 

 much dilated, toothed. 



Rang, Guerin's Mag. de Zool. 1834, p. .37. 



Hab. Martinique. 



A smooth round solid shell, distinguished by the same 

 kind of oblong callous tooth on the body-whorl which cha- 

 racterizes H. punctata. 



Species 278. (Mus. Cuming.) 



Helix pakilis. Hel. testd imperforatd, depresso-globosd, 

 nitidd, striis minutissimis confertissimis longiludinali- 

 bus et obllquis reticulata, castaned, maculis eljlamniulit 

 stramineis varie pidd; spird obtusissimd ; anfradibus 

 quatuor, planiusculis, ultimo prope aperturam rugoso, 

 vix descendente ; aperturd perobliqud, angustd; peri- 

 stomate incrassato, griseo-violaceseenfe, iif llo 

 jundis, dextro ad insertionem et in medio • .'''>• 

 basali obsolete serrato-denticulaio. 



The like Helix. Shell imperforated, dcprcssly glo- 

 bose, smooth, reticulated with very minute closc-scl 

 longitudinal and oblique stria;, chcstuut, variously 

 painted with straw-coloured flames and blotches : 

 spire very obtuse ; whorls four, rather flattened, the 

 last wrinkled near the aperture, descending but 

 slightly; aperture very oblique, narrow; lip thick- 

 ened, gi-eyish-vlolet, margins joined by n callosity, 

 ri"ht margin tuberclcd about the middle and at its 

 insertion, basal margin serratcly denliculatc<l. 



Fekussac, Hist. Moll. pi. 49. f. 2. 



Hab. Guadaloujjc. 



A solid dark chestnut shell, strikingly urii^miiiti u wnn 

 yellow epidcrniis-like flainr<. 



December, 1S,51. 



