HELIX.— Plate CXIV. 



pervio ; aperturd oblique lunari, inius laded, fasc'mtd ; 

 pertJiloniale siipenii expanso, bam incrmmto, subrejlexo, 

 marg'mibm subcomdvenlibm, columellari dilalato. 



The KAiTiiFUL Helix. Shell umbilicated, orbicularly 

 conoid, ruguloscly striated, very finely decussated, 

 browuish or yellowish, sometimes clouded with browu, 

 convex at the base, sometimes blackish-chestnut, with 

 a band beneath the periphery ; whorls seven, convex ; 

 umbilicus middling, open ; aperture obliquely lunar, 

 milk-white within ; lip expanded at the upper part, 

 thickened at the base, slightly reflected, margins 

 somewhat approximating, colunicllar margiu dilated. 



Gbav, Pro. Zool. Soc. 1834, p. 67. 

 Helix NutlalliaiKi, Lea. 



Uab. Fort Vancouver, (Jregon, North America. 



This species, as may be seen by the examples figured, 

 varies considerably in colour, but the band which encircles 

 it is always present. 



Species 658. (Mus. Cuming.) 

 Helix avcs. Eel. testa subampliter et profundi vmbili- 



cald, subdepresio-orbicuUtri, aolidd, Unigatd tel tub 

 lade minute oblitjui striata, fuicescente tinctd, ad mt- 

 luram saturatiore, ad peripheriam albifatciatd ; spird 

 conwxd, obttud ; aii/ractiiui guatuor, planiutetilia ; 

 aperturd subrotundd; peristomate incrattato, calloso-re- 

 Jlexo, alio, inargiti'diuii callo albo coiitpicuo junctis. 



The okandfather Helix. Shell rather largely and 

 deeply umbilicated, somewhat depressly orbicular, 

 solid, smooth, or very minutely obliquely striated 

 beneath the lens, stained v»'ith light brown, which is 

 darker next the suture, white-banded at the peri- 

 phery ; spire convex ; whorls four, rather flat ; aper- 

 ture nearly round ; lip thickened, callous, reflected, 

 white, margins joined by a conspicuous white callous 

 layer. 



Pfeiffek, Pro. Zool. Soc. 1852. 



Hub. Philippine Islands. 



A shell of very characteristic solid growth, largely and 

 deeply umbilicated with a peculiarly callous, thickened, 

 much reflected lip, the margins of which arc joined on 

 the body-whorl by a broad-spread callous layer. 



