HELIX. 



Plate LVIII. 



Species 283. (Fig. a, h, c, Mus. Cuming.) 



Helix cabnicolor. Hel. lestd subtimbilicatd, conoideo- 

 globosd, colore varid, niiiduld, slriis incremenii dis- 

 (iiiclU ; anfraclihia (luinque, conteximcuUs, ultimo 

 hifl^to ; aperliird lunato-rolundatd, iiitus rosed; peri- 

 donuite nmplici, intua purptireo-labiato, marffine dextro 

 acuta, colmnelldri arcuato, sulcata, suhreflexo, perfora- 

 t'wnem sulitegenle. 



TuE FLESH-COLOURED Helix. Shell slightly umbili- 

 cated, conoidly globose, variously coloured, shining, 

 with distinct lines of growth ; whorls five, rather 

 convex, the last inflated ; aperture lunar-rounded, 

 deep rose witliin ; lip simple, purj)le-edged inter- 

 nally, right margin sharp, columeUar margin arched, 

 grooved, slightly reflected, almost covering the um- 

 bilicus. 



Ferussac, Prodrome, p. 293. 

 Helix various, Menke. 



Ilai. Porto Rico. 



The brilliant deep rose-colour with which this shell is 

 stained ajjpears most coiisincuous on the part of the body- 

 whorl within the aperture. 



Species 284. (Mus. Adams.) 



Helix subconica. Set. testa tentd, late siibconicd, im- 

 perforaid, JIavido-fuscd, atro-fusco varie tineatd; an- 

 fractibus quitique, Itaud multum convexis, exile striatic, 

 ttltiiiio subangulato, subtus convexo ; aperturd sttb- 

 reclangulari, curviter depressd ; labro tenuissimo ,- co- 

 lutiielld rectd, acutd. 



The SUBCONICAL IIkhx. Shell thin, broadly subcorneal, 

 imperforated, yellowisli-brown, variously lineated with 

 blackish-brown ; whorls five, not very convex, finely 

 striated, tiic last slightly angled, convex beneath ; 

 aperture subrectaugular, eurvctUy depressed ; lip very 

 thin ; columella straight, sharp. 



Adams, Pro. Nat. Hist. Soc. Boston, U.S., 1S4.5, p. 15. 



Hall. Jamaica. 



The lip of this species is peculiarly callously flattened 

 as it approaches the columella. 



Species 28.5. (Fig. a, b, Mus. Adams.) 

 Helix (Jossei. Hel. testa imperforatd, orbiculato-co- 



noided, ienui, irregulariter plicatulo-striata, fuUndi, 

 nigro-caManeo fasciatd ; spird ireciter conoided, o6- 

 tusd; anfractibus /jiiiii/jiie, planimadis, ultimo antiei 

 vix descendente, basi subplanuUtto ; columella declivi. 

 angiistd, pland, introrsum acutd; aperturd obliquS, 

 elliptico-lunari ; peristomate simplici, teiiui, recto. 



Gosse's Helix. Shell imperforated, orbicularly conoid, 

 tliin, irregularly plicately striated, fulvous, banded 

 with blackish-chestnut ; spire shortly conoid, obtuse ; 

 whorls five, rather flattened, tiie hist scarctiy de- 

 scending in front, rather flat at the base ; columelln 

 slanting, narrow, flat, sharp inwardly ; aperture ob- 

 lique, elliptically lunar; lip simple, thin, straight. 



Pfeiffer, Pro. Zool. Soc. 1846. 



Hab. Jamaica. 



Encircled somewhat irregularly with very dark brown 

 bands and lines upon a swarthy fulvous ground. It may 

 prove to be a variety of //. subconica. 



Species 286. (Mus. Cuming.) 



Helix Gaskgixi. Hel. testd umbiticatd, tubdepresto- 

 orbiculari, opaco-alid; spird obtusd ; anfractibus lex, 

 contexts, oblique irregulariter plicato-striatit, ultimo 

 antice descendente, ad peripheriam acute angulato, can- 

 iiato ; nnibilico pro/undo, pervio ; aperturd otain, 

 subhorizonlali ; labro eleganter rejteio, margiHibu* 

 callo approiimatix. 



Gaskoin's Helix. Shell umbilicated, rather dcprcsswl, 

 orbicular, opake-whitc ; spire obtusi' ; whorls six, 

 convex, obliquely 'irregularly plicately striatcti, the 

 last descending in front, shaq)ly angled at the peri- 

 phery, keeled ; umbilicus deep, open ; ajK'rturc ovate, 

 nearly horizontal; lip elegantly reflected, marpn!' 

 approximated l)y a callosity. 



Pfeiffer, M.SS. (JIus. Cuming). 



Hab. St. Domingo ; Salle. 



A shell of rather solid growth, not in vcr>- u'ood condi- 

 tion, without any indieat"iii nf .nlour or marking. 



Species 287. (Fig. a, b, Mus. Cuming.) 

 Helix oviM-REr.iLl. Hel. testd imper/oratd, depreud, 

 Uviyatd, alhidd, punclis corueia aspersd el /i./ro-/oj- 

 ciatd ; spird parum elecald ; anfractibus juiaque, cu 



December, 1851. 



