HELIX. 



Plate LI. 



Species 241. (Mus. Cuming.) 



Helix Bronni. Eel. iestd imperforatu, semiylohosit, 

 tenuMr'mld, punctata, nitiduld, castaned, ad apicem 

 obtumm pallidd ; aufradibns quimpte, convexk, uUiino 

 obsolete carinalo, busi plamdato, tjranuloio, ei cterii- 

 lescente-albido, fascia castaned unlcd infra carinain, 

 antice dejlexo, profundi scrobiculalo ; aperturd sublto- 

 rizontttU, elliptico-obloni/d ; perislomale late incrassalo, 

 marijinibus callo teniii junctis, basali dilalalo, rcjlexo, 

 fusco-maculalo, inlus quadridentalo. 



Broxn's Helix. Siiell imperforated, scmiglobose, finely 

 striated, punctured, shining, chestnut, pale at the 

 apex which is obtuse ; whorls five, convex, the last 

 obsoletely keeled, rather flattened, granulated and 

 bluish-wliite at the base, ornamented with a single 

 cliestnut band beneath the keel, deflected anteriorly, 

 deeply furrowed ; aperture nearly horizontal, ellipti- 

 cally oblong ; lip broadly thickened, margins joined 

 by a thin callous layer, basal margin dilated, reflected, 

 brown-blotched, four-toothed within. 



Pfeiffer, Pro. Zool. See. 1845, p. 131. 

 Helix sinuata, var., Ferussac. 



Hab. Jamaica. 



Distinguished by its compact globose foim and absence 



of chestnut colouring at the base. 



Hab. Jamaica. 



This, and one or two other allied specie^, are ehane- 

 terized by a fine thread-like keel which eacirele"* the last 

 whorl in the centre of a narrow white band. 



Species 242. (Fig. a, b, Mus. Cuming.) 



Helix invalid.^. Hel. tesld imperforatd, subglobosd, nn- 

 diqiie minute granulald el punctata, ad peripheriam 

 carind temii cingulatd, rufo-caslaned, zonula alba 

 medio ornatd ; spird elevatd, obtmd ; anfractibus quin- 

 que, rolmidatin, ullinw antice deflexo, tri-scrobiculato ; 

 aperturd horizontali, oblonyo-lunari, marginibus op- 

 proximatis, bamli rejlexo, appresso, intus quadridentalo. 



The weak Helix. Shell imperforated, subglobose, 

 minutely granulated and punctured throughout, en- 

 circled round the periphery with a line keel, reddish 

 chestnut, ornamented with a narrow white zone 

 round the middle ; spire raised, obtuse ; whorls five, 

 rounded, the last deflected in front, three-furrowed ; 

 aperture horizontal, oblong-lunar, margins approx- 

 imated, basal margin reflected, appresscd, four- 

 toothed within. 



AdaiMS, Contributions to Conchology, No. 5. p. 79. 

 Eadem var. H. candescem, Adams. 



October, 



Species 243. (Mus. Cuming.) 



Helix sixuata. Hel. testa imperforatd, depreuo-globosd, 

 soluld, undique minute granulatd, saturate ca*la»ed, 

 fascid pallidd cingulatd, basi riolascente ; spird semi- 

 globosd ; anfractiius quinque, contexts, ultimo carinalu, 

 basi convexo, antice deflexo, valde slricto, scroiiculato ,■ 

 aperturd liorizontali, angusti lunari ; per'utomate tub- 

 incrassato, marginibus callo tenui junctis, siipero ex- 

 pansu, basali appresso, quadridentalo, denlibus compres- 

 sis, intruntibus. 

 The sinuated Helix. Shell imperforated, dcpressly 

 globose, solid, minutely granulated throughout, dark 

 chestnut, encircled with a faint band, vioh't-lingcd at 

 the base; spire scmiglobose; whorls five, convex, 

 the last keeled, convex at the base, deflected an- 

 teriorly, much drawn out, and furrowed ; a|x-rtua- 

 horizontal, nanowly luniu- ; Up somewhat thickened, 

 margins joined l)y a thin callous layer, upper margin 

 expanded, basal margin apjjressed, fonr-toolhed, tettii 

 compressed, entering. 

 Mcller, Verm. terr. et fluv. Hist. vol. ii. p. IS. 

 Hab. Jamaica. 



This may be regarded as the original type of the cha- 

 racteristic group of Jamaica Ileiu-es, of which others are 

 represented in the accouipaiiying plate. 



Species 244. (Fig. a, b, Mus. Cuming.) 



Helix stranuilata. Hel. /- ' ' ' ■". 



solidd, undique minute gra,. ./""■ 



castaned, basi pallidd, tirescenU ; sptrd obtusd; an- 

 fractibus quinque, ultimo antice drfiexo, tale xcrtihicm- 

 lalo ; aperturd ublongo-lunari, contracld : prhttomalr 

 dilatato, marginibus approximalis, bas,. ■ xo, 



appresso, intus Iridentalo, deMlibii' ■ '»- 



trantibus. 



The STitAXGLEU IIklix. Shell impiri;>i..u.l. ^1 .|«..*f. 

 solid, minutely granuhited and pinictun-il tiiroiighout, 

 reddish-chestmit, pnlc nn.l greenish nt the bn-v ; spire 

 obtuse; whoris five, the last deflected nntiriorly and 



1851. 



