HELIX— Platk LXXXII. 



vex on both sides, dosely striated in a wrinkled man- 

 ner on the upper part, faintly decussated with spiral 

 stria;, pale brown, with a single pale band above the 

 periphery ; spire conoid, obtuse ; whorls four to five, 

 rather flat, last whorl angled in the middle, smoother 

 and shining beneath ; columella short, obli<iue, rather 

 thickened ; aperture angukrly lunar ; lip thin, shar]). 



Gray, Pro. Zool. Soc. 1834, p. 65. 



nab. Phillip Island, Pacific Ocean. 



This species is mostly of a dull olive-colour above, and 

 shining chestnut below, the contrast being very signifi- 

 cantly marked at the periphery. 



Species 439. (Mus. Cuming.) 



Helix Forsteuiana. Hel. testa umbilicatd, orbkulari, 

 lenui, undique peculiariter granulatd, fidvescentc, fas- 

 ciis duabus pallida rufo-fmcU cingulatd ; spird subde- 

 pressd, suturii imprems et mbrude plica tis ; umbilico 

 pro/undo ; aperturd lunari ; perMomate dmplici, mar- 

 gine columellari breviter dilatato et refiexo, rufo-fusco. 



FoRSTEu's Helix. Shell umbilicated, orbicular, thin, 

 peculiarly granulated throughout, fulvous, encircled 

 by two rather faint red-brown bands ; spire somewhat 

 depressed, sutures impressed and rather rudely pli- 

 cated ; umbilicus deep ; aperture lunar ; lip simple, 

 coluraellar margin shortly dilated and reflected, red- 

 brown. 



Pfeiffek, Pro. Zool. Soe. 1861. 



Ilab. Australia. 



Characterized by a pecidiarly granidated surface, and by 

 the sutures of the spire being finely rudely plicated. 



Species 440. (Pig. a, b, Mus. Cuming.) 



Helix circulus. Hel. testd umbilicatd, depressd, aolidd, 

 ruguloso-striald,niliduld,albd; spird vix elevatd ; an- 

 fToctibus (juinque ad sex, convexis, ultimo subanguluto, 



non de»cendenle ; umbilico mfdiocri, pervio ; aperturd 

 obliqud, parciild, lunafo-circulari, iiitus callo circulari 

 coarctatd ; perislomale breviter expanso, marginHtus 

 connivenMus. 



TiiE OEB Helix. Shell umbilicated, depressed, solid, 

 roughly striated, shining, white ; spire but little 

 raised ; whorls five to six, convex, the last slightly 

 angled, not descending ; umbilicus middling, open ; 

 aperture oblique, rather small, lunar-circular, thick- 

 ened by a circular callosity within ; lip shortly ex- 

 panded, margins approximating. 



Pfeiffeh, Symbolae, vol. iii. p. 76. 



Hab. ? 



The aperture of this species is perfectly round, much 

 after the manner of a Cgclostoma. 



Species 441. (Mus. Cuming.) 



Helix papillata. Hel. testd umbilicatd, depressd, sub- 

 di^coided, solidinsculc, irregulariter striata, opacd, al- 

 bidd, spadiceo-nebulosd saturatiusque ttrigatd el macu- 

 latd ; spird pland, apice papillata ; anfractibus quinque, 

 planiusculis, ultimo descendenle, depresso-rotundalo ; 

 umbilico angusto, pervio ; aperturd obliqud, lunato-sub- 

 circulari ; peristomate simplici, acuta, margiiie colu- 

 mellari vix dilatato. 



The papillated Helix. Shell umbilicated, depressed, 

 subdiscoid, rather solid, irregularly striated, opakc- 

 whilish, clouded with fawn-colour, and streaked and 

 spotted of a darker colour ; spire flat, papillated at 

 the apex ; whorls five, rather flat, the last descending, 

 deprcssly rounded ; umbUieus narrow, open ; aperture 

 oblique, luniir-subcircidar ; lip simple, acute, colu- 

 mellar margin a little dilated. 



Pfeiffer, Pro. Zool. Soc. 1845, p. 129. 



Hab. ? 



The darker band derives a purplish hue from an over- 

 coating of opake white. 



