HELIX, 



Plate CVI. 



Species 589. (Mus. Cuming.) 



Helix pileiformis. Ilel. tesla nmhiUcata, pyramidali- 

 Trochiformi, lenui, slriatd, frayili, oUvacco-fmcu ; 

 spird elatd, conicd, acutd; anfraciiius aeptem, plana- 

 iis, ultimo carinato, hasi conveximculo ; aperlurd sub- 

 quadrangnlari ; peridomaie aimpUci, margiuibus callo 

 tenui junciis, dextro et iasali expaiim, columellari di- 

 latato, reflexo, umiilicum fere ocuUante. 



The cap-shaped Helix. SbcU umbilicatcd, pyrami- 

 dally Troehus-shaped, tliiu, striated, fragile, olive- 

 brown ; spire raised, conical, sharp ; whorls seven, 

 flattened, the last keeled, rather convex ; aperture 

 somewhat square ; lip simple, margins joined by a 

 thin callosity, right and basal margins expanded, 

 columellar dilated, reflected, nearly concealing the 

 umbilicus. 



MoRiCAKD, Memoires Nat. Hist. See. Geneva, vol. vii. 

 part 2. p. 420. pi. 2. f. 2. 



Ildh. Brazil; Moricand. 



A delicate pyramidal shell of horny texture, partici- 

 pating in the generic characters of Ilulmus. 



Species 590. (Fig. a, b, Mus. Cuming.) 



Helix sclphurosa. Ilel. testd imperforatd, subglobosd, 

 injlatd, lavigatd, sulphured; spird pared, abbreviatd ; 

 guturi» rubidii ; anfractiJbm fjualuor, convexis; aper- 

 lurd lutiari-ovali, labro simplici, intus subiiicrassato. 



The bbimstone-coloured Helix. Shell imperforated, 

 somewhat globose, inflated, smooth, brimstone-co- 

 loured ; spire small, short ; sutures ruddy ; whorls 

 four, convex ; aperture lunar-oval, lip simple, thick- 

 ened inwardly. 



Morelet, MSS. (Mus. Cuming.) 



Ilab. ? 



It is extremely doubtful whether this is distinct from 

 II. picla. It varies a little from the ordinary form of 

 that species, and Dr. Pfeiiler has confirmed the view taken 

 of it by M. Morelet. 



Species 591. (Fig. a, b, Mus. Cuming.) 



Helix Menkeaxa. Ilel. testd umiilicatd, depressd, euitut 

 convexiore, tenuiutculd, lavi, alia, fasciis fmcia, m- 

 premd latissinid, punctiaque promiscuis ornatd, epi- 



Junc, 



dermide pallidi corned diaphand induta ,- tpird de- 

 pressd ; anfractibut quatuor, vix eontexiutculis, celeri- 

 ier accrescent iiiis ; aperlurd subeerticati, lunato-otali . 

 peristotiiate simplici, acuio, margine columellari su- 

 penie perdilatato, reflexo. 



Menke's Helix. Shell umbilicatcd, depressed, convex 

 beneath, rather tiiin, smooth, white, oniamentcd with 

 three to four brown bands, the uppermost of which 

 is the broadest, and with promiscuous dots, and 

 covered with a pjde homy transparent epidermis ; 

 spire depressed ; whorls four, rather convex, increas- 

 ing rapidly ; aperture subvertical, lunar-oval ; lij) 

 simple, sharp, columcUar margin much dilated at the 

 upper part, reflected. 



Pfeiffeb, Symbohe, vol. ii. p. 33. 



Ilab. Cape of Good Hope ; Krauss. 



Peculiarly promiscuously dotted throughout in a man- 

 ner resembling the appearance of fly-spots. 



Species 592. (Fig. a, b, Mus. Cuming.) 



Helix trizonalis. Eel. testd umiilicald, crauituctdd, 

 oriiculato-convexd, subglobosd, ekganler sulcalo-plica- 

 iuld, pallidi lulescente, zonis triius cicidi eaUanei* 

 cingulatd, basi immaculaid; anfractibus quatuor, eon- 

 vexis, ultimo pone labrum peculiariter scrobiculato ; 

 aperlurd oblique otatd, intus bidentaid, dente oUero ad 

 marginem basalem, altera in fauce ; perittomale «r- 

 panso, reflexo, ad columellam appreuo-dilataio, umbi- 

 licumfere tegente. 



The three-zoned Helix. Shell umbilicatcd, rather 

 thick, orbicularly convex, subglobosc, elegantly finely 

 plicated and grooved, pale yellow, encircled with 

 three bri"'ht chestnut bands, base unspotted ; whorls 

 four, convex, the last pccidiarly furrowed behind the 

 lip; aperture obhtjucly ovate, two-toothed within, 

 one tootli on the basal margin, the other in the throat 

 of the apertUR' ; lip expanded, rtllccted, apprcssly di- 

 lated at the columella, almost covering the umbilicus. 



Gratelocp, Act. Soc. Linn.de Bordeaux, vol. xi. p. 101. 

 pi. 1. f. 8. 



Uab. Cuba. 



A shell of solid growth, approximating to the //. tinuata 



form of Jamaica, but ncvcrthiless distinct from it lK)th 



specificaUy and typically. 



1S52. 



