HELIX. 



Plate CXLIX. 



Species 965. (Mus. Cuming.) 



Helix ISODON. Ilel. testa suhamplUer umiilicatd, leiili- 

 ciilari, fiiho-fiiscd ; spirit aulielevatd, Je/isi tenuis/ ri- 

 ald ; aii/ractiius quinque, coiicexis, ultimo carinato, 

 anlicii valde dejlexo ; aperttird transverse trigoiio-otatd ; 

 perijstomate expanso-rtjtexo, nuirginibus contiuuis, den- 

 lihus Irihus ant qnatuor ad hasalem, denle nwgno la- 

 vielliformi ad parietem oppositam. 



The equal-toothed Helix. Shell somewhat larpjely 

 uiiibilicatcd, lenticular, fulvous-brown ; spire some- 

 what raised, densely finely striated ; whorls five, con- 

 vex, the last keeled, much deflected in front ; aper- 

 ture transversely triangularly ovate ; lip expandedly 

 refiectcd, margins continuous, with three to four teeth 

 on the basal margin, and one large lamelliform tooth 

 on the opposite wall. 



Pfeiffek, Pro. Zool. Soc. 18.52. 



Ila/j. West Columbia. 



A verj- prominently-toothed species, of a livid fulvous- 

 brown colour, with the edge of the apertui'e continuous 

 and prominently expanded. 



Species 96G. (Mus. Cuming.) 



Helix Berytensis. Ilel. testd umhilicald, depresso-glo- 

 hosd, tenui, sidjpellucidd, luleo-fulmcanle, miniitissime 

 granutald ; anfractibus quinque ad sex, planiuscnlis, 

 ultimo magno, obsolete angulato ; umhilico angusto ; 

 apertiird lunato-rotundatd ; peristomate simplici, in tits 

 lahiato, margine columellari rejlexo, hnsali et dextro 

 vix expaiuis. 



The Beykout Helix. Shell umbilicated, depressly glo- 

 bose, thin, subtransparent, ycllowish-fidvous, very 

 minutely granulated ; whorls five to six, rather flat- 

 tened, the last large, obsolctely nnglcd ; umbilicus 

 narrow ; aperture lunar-rounded ; lip sim])le, edged 

 within, columellar margin reflected, basal and right 

 margins a little expanded. 



Feuussac, Prodrome, p. 200. 

 Helix granulata. Roth. 



Ilab. Beyrout, Syria. 



Of an uniform light fawn colour, without spot or mark- 



Species 9G7. (Mus. Cumiiig.) 



Helix dichuoa. Ilel. testd umhilicald, globoto-depressii, 

 tenui, nldiqui- striata, linei* confrrlis tkh Unt' 

 paliute corned, diap/tanii, lingulii permiilti» ' . > 



interruptis orjiatd ; anfractibus »ex, convexiuictitu, ui- 

 limo antice dejlexo, busi concexo ; umbilico angusto ; 

 apertnrd lunato-circulari ; peristomate tenui, margini- 

 bus conniventibus, supero expansinsculo, basali brevit- 

 sinii rtjlexo, columellari dilatato, nitido, refiexo. 



The two-coloubew Helix. Shell umbilicuted, do- 

 boscly depri'ssed, thin, oblicpiely striated, ! 



beneath the lens with close-set lines, pale i. 

 phnnous, ornamented with many interrupted opake 

 white bands; whorls six, rather convex, the la«t de- 

 flected ui front, convex at the base ; umbilicus nar- 

 row ; aperture lunar-circular ; lip thiu, margins up- 

 proxiniating, upper margin a little expand<fd. ba«)il 

 very shortly reflected, columellar dilated, shining, nr- 

 flected. 



Pfeiffek, Symbolic, vol. iii. p. 70. 



Uab. Shanghai, China; Fortune. 



The opake-white bands above described exist only in 

 the cpidcnnis, and arc sometimes wanting. 



Species 968. (Mus. Cuming.) 



Helix Launcestoxensis. Ilel. testd subprofnndi *m- 

 bilicatd, obtuse ronicd, supra I- 

 lenuibus lirisqne granulatis ni_; 

 infra corned, nilente, nigra et luleo ricidi faxiald ; 

 anfractibus quinque, conrexiusculis, supemi leritrr c/c- 

 pressd, ultimo paululum dejlexo ; aprrlurd Iramrrri^ 

 seinilunari ; peristomate vix rejlexo, purpurascritte. 



The Launcestox Helix. Shell rather deeply uml>iti- 

 caled, obtusely conical, rusty-brown olxive, cncirrliil 

 with fine wrinkles and blackish simulated r..:_ -. 

 horny and shining beneath, vividly bandc<l with i ..i. k 

 and yellow ; whorls five, rather convex, slightly de- 

 pressed lit the upper part, last whorl ' 

 fleeted ; aperture transversely semilunar . 

 reflected, purple-tinged. 



Reev'j, Pro. Zool. Soc. Kii. 



llnb. Launceston, Van Piemen's Land ; Gnnn. 



For the discovery of this interesting six-cics, which pre- 

 sents a ditTercnt set of typicnl characters from any hitherto 



Febrnarv, 1S33. 



