II E L I X. 



Platk CL. 



Species 972. (Mus. Cuming.) 



IIei.ix ixcu.\ss.\t.v. IM. testa aitl/ampliter umiilicata, 

 miltdtpresnd, ducoided, sordid} corned; anfractWus 

 quatuor, convexis, basi subangulato-productd ; apertura 

 subrotmulatd ; perisloniate siuiplici, margin'djits coiini- 

 ventiius. 



The EXcnusTED Helix. Shell ratlirr largely uinbili- 

 cated, somewhat depressed, diseoid, dirty-horny ; I 

 whorls four, convex, rather angularly produced at 

 the base ; aperture subrounded ; lip simple, margins | 

 approximating. 



PoEY, (Mus. Cuming). 



/ia/j. Havana. 



The aperture of this little species is scarcely so angu- 

 larly produced as represented in the figure. 



Species 973. (Mus. Cuming.) 



Helix stlexdidul-^. Mel. testa umbiUcatd, depressis- 

 nimd, paUide olivaceo-conied, nilidd, strialuld, Uneis 

 concentricis magk mmusce disiinctis obsolete reticu- 

 l<itU ; spird plana; sulurd profunda; anfraclibus 

 tribus ad quatuor, subplanulatis, celeriter uccrescentibus, 

 ultimo lato, antice no7i descendenle ; umbilico Utto, per- 

 spectivo ; apertura obliqud, luiiato-ovali ; periitomate 

 simplici, acuta, marginibus conniventibus, dextro ob- 

 lique desceiidente, antrorsum siibarciialo. 



The splendid Helix. Shell umbilieatcd, very de- 

 pressed, pale olive-horny, sliining, finely striated, ob- 

 soletely reticulated with more or less distinct concen- 

 tric lines; spire flat; suture deep; whorls three to 

 four, slightly flattened, increasing quickly, the last 

 broad, not descending in front ; umbilicus broad, 

 perspective ; aperture oblique, lunar-oval ; lip simple, 

 sharp, margins approximating, right margin obliquely 

 descending, slightly arched iu front. 



Pfeifi-eb, Pro. Zool. Soc. 181.5, p. 128. 



Uab. Torres Strait, Australia. 



A sul)discoid shining olive-horny species, hardly splen- 

 did enough in appearance to justily its specific name. 



Species 974. (Mus. Cuming.) 



Helix morbid.v. Uel. testa angusti umbilicata, ghbosd, 

 teiiui, corned; suturd subinipressd, rubidd ; anfractibiif 



rebruury 



quatuur, conreiu, ultimo obsolete fasciald ; apertura 

 rotuudatu-luuari ; perutomate limplici, inlus rubido- 

 annulato, margine basali dilatato, umbilicum parlim 

 tegente. 



TuE DISE.\SED Helix. Shell narrowly umbilieatcd, glo- 

 bose, tliin, horny ; suture rather impressed, red ; 

 whorls four, convex, the last obsoU-tely banded ; 

 aperture roluudutcly lunar; lij) simple, lined with a 

 red ring within, basal iiiargiu dilated, partially co- 

 vering the umbilicus. 



MoBELET, (Mus. Cuming). 



Uab. Cuba. 



The red colouring noticed above is perhaps the mo^i 

 characteristic feature of this species. 



Species 975. (Mus. Cuming.) 



Helix aulacosimr.v. lUl. te-itd ampUter pertpecliee 

 umbiUcatd, depressd, subdiscoidcd, infra concord, striii 

 impressis concentricis lubdiMaHtibus undique ineitd, 

 vicide olivaced, nitente ; anfraclibus quatuor, concaro- 

 declicibus ; apertura rotundnto-lunari, intu* terruco- 

 dentatd ; peristomate simplici, acuta. 



The fubbowed-spibe Helix. Shell largely perspec- 

 tively uml)ilicated, depressed, somewhat discoid, con- 

 cave beneath, engraved throughout with rather dis- 

 tant concentric impressed stria", bright olive, shioiug; 

 whorls four, eoncavely slanting; aperture rotiindatcly 

 lunar, wart-toothed within ; lip simple, sharp. 



Pfeiffer. Pro. Zool. Soc. 1853 ? "■ - 



Uab. New Hebrides. 



This belongs to the same peculiar type as //. bitulcala 



of the preceding Plate from Van Uiemeu's Lnnd. The 



wart-like tooth, above noticed, is, iu this sjxicics, too far 



within the shell to appear in the figure. 



Species !i7'>. (Pig- a, b, Mus. Cuming.) 

 IIklix llELiilsoiDts. Ilel. testa imperfuratd, coHtcd, 

 versus aperturam oblique productd, arcualim tiriald, 

 lutescente, plus minus prIluciJd rrl ' ruftt- 



castaneo lalifisciatd ; spird aruld ; -■ . ' qua- 



tuor ad quiuque, plaHO-courrxit, ad basin aculi dtlalatit 

 el carinalis ; apertura otato-trape:\f<jrmi ; peristomate 

 expanso-njlrxo. 



, 18J3. 



