HELIX. 



Plate CI.XXXIX. 



Species 1317. (Mas. Cuming.) 



Heli.X GLAUEUIUMa. llel. inid siihprofumli umhilicald, 

 orlnciilari-ilfpreiKa, liitenceii/e-cunifd, polilimimii, tii- 

 tenle ; apird plaiio-coiwexa ; aiifractibus iiiiiiique, mtb- 

 aiiffKn/ii, concexii ; uperturd litiiato-circulari, liihro 

 nhiijiliri. 



The very smooth Helix. Shell rather deeply umbi- 

 licated, orbicularly depressed, yellowish-lioniy, very 

 polished, shitiiuj; ; spire flatly convex ; whorls five, 

 rather narrow, convex ; aperture lunar-circular, lip 

 simple. 



Pfeiffer, Pro. Zool. Soc. 1854. 



Ilab. Solomon's Island. 



A very shining yellowish-horny species, rather deeply 

 uniljilicated. 



Species 1318. (Mus. Cuming.) 



Helix membkanicosta. Hel. testa siibprofundi umbili- 

 catd, snliyloboHO-conicd, corned, epidermide teniii fitacd 

 iiidiitd, obiciire coilellato-stria/d ; spird aubetetatd ; 

 sutiird impresm ; anfraclibm sex, convexii, ultimo an- 

 ffulato-cariiialo ; aperturd limari, labro simplici. 



The membkane-iuubed Helix. Shell rather (leeply 

 umbilicated, subglobosely conical, horny, covered 

 with a thin brown epidermis, obscurely rib-like stri- 

 ated ; spire rather raised ; suture impressed ; whorls 

 six, convex, the last angularly keeled ; aperture lunar, 

 lip simple. ^^^,1 



I'feufer, Pro. Zool. Soc. 1^*57 



Ilab. Solomon's island. 



A light globosely conoid shell, covered with a thin 



brown membranous epidermis. 



Species 1319. (Mus. Cuming.) 



Helix CIRCUMFIKMAta. Hel. testa subprofimdi iimiili- 

 catd, conoided, arciiatim striald, tiitesceiite-corued, 

 viaciilis rujis parck niimerosit tessetlatd ; spird »ul>- 

 obtitsd; atifractibm septem, aiujustin, coiirexis ; aper- 

 turd parviusciild, limari, labro simplici. 



The close-bound Helix. Shell rather deeply umbi- 

 licated, conoid, arcuately striated, yelidwish-horny, 

 tessellated with numerous small red spots; spire 

 rather obtuse ; whorls seven, narrow, convex ; a|)or- 

 ture rather small, lunar, lip simple. 



July, 



Redfield, Annals Lyceum Nat. Hist. New York. 

 Ilab. Bermuda. 



A closely convoluted conoid horny shell, densely tessel- 

 lated about the spire with small red 8|)ots. 



Species 1320. (Mus. Cuming.) 



Helix .F.NEA. Hel. testa angusti umbilicatd, tubylobosa, 

 teniii, iiijlatd, confertiMimi minute costellato-striatd. 

 fitsco-coriied, siiljdiaphand ; spird parrd ; tutura iiri- 

 pressd ; aii/raclibiis qiiatuor, plaiio-conrexis ; aper- 

 turd gubampld, oblique lunari, labro simplici, ad um- 

 bilicum breriter dilatato. 



The bba/.en Helix. Shell narrowly umbilicated, sub- 

 globose, thin, inflated, very closely minutely rib- 

 striated, brown-horny, subdiaphanous ; spire small : 

 suture impressed ; whorls four, flatly convex ; aper- 

 ture rather large, oblir|uely lunar, lip simple, shortly 

 dilated at the umbilicus. 



Kbauss, Moll. Siidafric. p. 75. pi. \. f. 18. 



Hub. Natal, South Africa ; Plant. 



A light inflated shell, of only four whorls, of which the 



outer surface is unusually minutely rib-striated. 



Species 1321. (Mus. Cuming.) 



Helix Newcombi. Hel. testa minute umbilicata, obliqui 

 liirbinatd, depressd, pelliicido-corned, tt-iiuijuimd, nr- 

 cuatiiu striatd, ad suturas radiatim plicatd ; spird 

 parrd ; aiifractHiui tribus ad quatuor, ultimo ixjlato ; 

 aperturd siiliampld, fere circulnri, labro simplici. 



Newcombe's Helix. Shell minutely umbilicated, ob- 

 liquely turbinated, depressed, transparent horuy, 

 very thin, arcuately striated, nidiatoly plicated at the 

 sutures ; s])irc small ; whorls three to four, the last 

 inflated; aperture rather large, nearly circular, lip 

 simple. 



Pfeiffeu, Pro. Zool. Soc. 1854. 



Ilab. Oahu, Sandwich Islands ; Ncwcombe. 



.\ vcrj- delicate /'i/ri/zn-like shell, cominised of scarcely 



more than three whorls. 



Species 1322. (Mus. Cuming.) 

 Helix IIADIaUIa. llrl. Ie»ld uiiHuli obtecle umbilicatd, 

 globoso-coMoided, tamiculd, obliqui striatd, gritio- 

 ' nlbd, maculit HiijricoHte-fuscis pcrpauci* radiatd ; 



1851. 



