HELIX.— Plate XLR'. 



marked with superficial indentations. The lip is of a 

 deep vermilioD-orangc. 



Species 206. (Fig. a, b, Mus. Cuming.) 



ILelix anoistoma. Uel. te$td oAtecli itmbilieatd, orbicu- 

 latd, utrinque coiwexd, nolu/d, subtiUter slriatd, fuho- 

 nifd, fasciis saluratioribm onia/d, siiluris lioidis ; aii- 

 fraclibM tex ad septem, planU, quatuor ullimin ntbte- 

 qual'dius, ultimo acute carinato ; aperturd angulatu-lu- 

 nari ; periitomate incrasiato, caUoto, margiiiibus callo 

 connexii, basali rejlexo, perforationein promts tegente. 



The NAKROw-MOUTii Helix. Shell with the umbilicus 

 covered, orbicular, convex on both sides, solid, finely 

 striated, fulvous-red, oniamentcd with darker bauds ; 

 sutures livid ; whorls six to seven, llat, the last four 

 nearly equal, the last one sharply keeled ; apertui-e 

 angularly lunar ; lip thickened, callous, margins con- 

 nected by a callosity, basal margin reflected, entirely 

 covering the umbilicus. 



Ferdssac, Hist. Moll. pi. CO. f. 1. 

 CarncoUa angUtoma, Lamarck. 



//aA. West Indies. 



A perfect lens-shaped form, of a foxy-red colour, with 



the sutures of a peculiar liWd aspect. 



Species 207. (Mus. Cuming.) 

 Helix asfeka. Eel. tedd imperforatd, Iraiuversi pyri- 



formi, solidd, umlique confertim el irregulariter ijra- 

 nosa, albd; apird brevi, ob/wid, strlgU mimuUu rujii 

 fuhjurald; aiifraclibus quatuor, plaimUilit, rapidi ac- 

 crescentibua, ultimo obioleti aiu/ulato, turgido, a latere 

 tubcompresso, aiitice dejlexo ; aperturd aiigu»td, tratu- 

 versi ocali, iiituit iiitidd, fauce caslaned; perittomaU 

 valdi iiicramalo, rejlexo, marginibut callo junctin, 

 supero repando, basali dilatato, j/rope columeUam 

 varie deutato, eetate calloso, bisinuoso. 



The rodgi! Helix. Shell imperforated, transversely 

 pcar-sha])cd, solid, closely and irregularly graijied 

 throughout, white; spire short, obtuse, coloured 

 with a few reddish streaks ; whorls four, flattened, 

 rapidly enlarging, tlie last obsoletcly angled, swollen, 

 a little compressed at the side, deflected anteriorly ; 

 aperture narrow, transversely oval, shining within, 

 interior chestnut ; lip much thickened, reflected, 

 margins joined by a callosity, upper mai^in spread, 

 basal margin dilated, variously toothed near the co- 

 lumella, callous and bisinuous with age. 



Ferussac, Hist. Moll. pi. 44. f. 1-3. 

 Helix granosa, Wood. 



llab. Jamaica. 



The dentation of this singular and well-known species 

 is extremely variable ; in the specimen before me the lip 

 is five-toothed. 



