HELIX. 



Plate LXI. 



Species 301. (iliis. Cuming.) 



Hei,ix sutukalis. Hel. leatd late nmbUlcatd, depressd, 

 suidiscoided, ienid, sui lente mimiiimme gratmlosd, 

 pilond, fmco-corned; spird plana, medio stdjimmend, 

 Hulurd profunda ; anfractibun quatuor, convexi-nsimis, 

 ultimo anlice descetidenle ; aperturd peroblinud, mhcir- 

 cidari ; perislomate simplici, marginibus conniventibus, 

 dextro recto, supenie foniicato, columellari subrecedente, 

 arcimto, baaalique brcviter re/lexis. 



The sutural Helix. Shell broadly umbilicated, de- 

 pressed, subdiseoid, thin, minutely granulated beneath 

 the lens, brown-honiy ; spire Hat, slii^htly immersed, 

 with tlie suture deep ; whorls four, very convex, the 

 last descending in front ; aperture very oblique, 

 nearly circular ; lip siuii)le, with the margins approx- 

 imating, right margin straight, arched above, eolu- 

 mellar margin somewhat receding, arched, and, witli 

 the basal margin, shortly reflected. 



Pfeiffeu, Pro. Zool. Soc. 1846, p. 37. 



Hab. Honduras. 



A rounded liorny discoid shell with a broad perspective 

 umbilicus. 



Species 302. (Mus. Cuming.) 



Helix imjiunda. Ilel. testd umbi/icatd, di-Koided, tcnui, 

 corned, epidermide tenui induid ; spird depresad ; suturd 

 profundd; anfractibus quinque, rotundatis ; umhiUco 

 profunda, pervio; aperturd semilunari; peristomate 

 simplici. 



The unclean Helix. Sliell umbilicated, discoid, thin, 

 homy, covered with a tliin epidermis ; spire de- 

 pressed; suture deep; whorls five, rounded; umbilicus 

 deep, open ; aperture semilunar ; lip simple. 



Adams, Contributions to Conchology, No. 3. ]). 30. 



Hab. Jamaica. 



The umbilicus is narrower and deeper in this than in 

 the preceding species, and the apertui'e consequently less 

 circidar. 



miscue nolald ; spird eonvexd, apice fused; anfraclibu' 

 quinque, convexis, undique creberritni eletato-strinlit, 

 ultimo subungulato ; aperturd lunari, Uibro simplici : 

 columella subcallosd, alba. 



Bland's Helix. Shell imperforated, somewhat deprtssly 

 orbicular, brownish-wliitc, jiromiscuously marked hen- 

 and there with a brown line ; spire convex, brown at 

 the apex ; whorls five, convex, very closely elcvntcly 

 striated throughout, last whorl slightly angled ; a|)er- 

 turc lunar, Up simple ; columella rather callous, white. 



Adams, Contributions to Conchologj', No. 7. p. 107. 



Hab. Jamaica. 



The entire surface of this species is sculptured with 

 close-set raised lines. 



Species 303. (Mus, Cuming.) 



Helix Blandiana. Hel. testd imperforatd, subdepresso- 

 orbicttlari, fuscescente-albd, lined fused hie illic pro- 



Species 304. (Mus. Cuming.) 



Helix concolor. Hel. testa umlilicatd, discoided, la- 

 vigald, suMriald, fulvd, castaneo alternaiim ttrigald ; 

 spird pland ; suturd lineari ; anfractibus quatuor, 

 celeriter accrescentibus, ultimo supemi depresso, basi 

 convexiore ; aperturd luuato-subcirculari ; peristoma/e 

 simplici, aeuto, margiiiibus approximatis. 



The uniform Helix. Shell urabibeated, discoid, smooth, 

 substriated, fulvous, alternately streaked with chest- 

 nut ; spire flat ; suture bnear ; whorls four, increasing 

 rapidly, the last depressed at the upper part, convex 

 at the base ; aperture lunar-subclrcular ; lip simple, 

 acute, with the margins approximating. 



Ferussac, Hist. Moll. pi. 82. f 2. 



Hab. Porto llico. 



Strongly characterized by its complete discoid Phmor- 



iw-like form. 



Species 305. (Mus. Cuming.) 



Helix sticmatica. Hel. testd umbilieata, orbicHlari, 

 tenui, luteo-corncd. subdinphand, minutissime grannlatd ; 

 spird pland; anfractibuji quatuor ad quinque, romvxM, 

 supremis horizontalibus, ultimo sensim descmdeHtt, n>- 

 tuiidnto; aperturd lunato-subcirculari ; peritlomaU 

 simplici, recto, margine dextro cix rxpaiuiutmlo, coin- 

 mellari parum rejlexo. 



The branded Helix. Shell umbilioitcd, orbicular, thin. 

 ycUowish-homy, subdiujilmnous, minutely granulated ; 



December, 1851. 



