II KLIX.— Plate CCI. 



sulif/lobosd, hitescente-corned, nilenle ; spird pariim 

 elevald ; aitfractibm quatuor ad quinque, declici-con- 

 vexu, basi siibplaniila/is ; aperlurd oblique Imiari, 

 labro simpUci. 



The distressed Helix. Shell minutely umbilicatcd, 

 deprcssly subglobose, yellowish-lioruy, sliining ; spire 

 but little niised; wborls four to live, slantingly con- 

 vex, rather flat at the base ; aperture obliquely lunar, 

 lip simple. 



MoRELET, llevue Zool. Soc. Cuvierienne, 1841, p. 351. 



Jlab. Senegal. 



A subtransparent yellowish-horny shell, minutely um- 

 bilicated. 



Species 141 6. (Mus. Cuming.) 



Helix Petronella. Ilel. testa angmte aperte nmlili- 

 catd, siipenie dislincte et confertim pVicaluld, tirente- 

 hyalind; spird convexiusctild ; sulurd impressd, stib- 

 tnarfflnatd ; aiifraclibus quatuor, planiusculis, ultimo 

 dejire-iae rotundato ; aperlurd parum obliqud, lunato- 

 rotundatd, labro simplici. 



The Petronella Helix. Shell narrowly openly mn- 

 bilicated, distinctly and closely plicated at the upper 

 part, greenish-hyaline ; spire rather convex ; suture 

 impressed, slightly margined; whorls four, rather 

 flat, the last deprcssly rounded ; aperture a little ol)- 

 lique, lunar-rouudcd, lip simple. 



Ciiarpentier, MSS. I'feiffer, Mon. Helic. viv. vol. iii. 

 p. 95. 



Hab. On the summit of the Swiss Alps. 



A minute horny species, of extremely rare occurrence. 



Species 1417. (Mus. Cuming.) 

 Helix in fans. Hel. testa vLt umbilicatd, dfpresso-sub- 



globosd, soliduld, Ittrigatd, nilente, corned; *pird coti- 

 vexd ; tuturd aubimpreiad el ditliiicli marginald ; 

 anfract'ihws quinque, conrejciuiculi* ; aperlurd obliqur 

 lunari, labro simplici, rufulo. 



The infant Helix. Shell scarcely umbiliraitcd, de- 

 prcssly subglobose, rather solid, smooth, shiDin<;, 

 horny ; spire convex, with a suture rather impressed 

 and distinctly luarginatcd ; whorls five, slightly con- 

 vex ; aperture obliquely lunar, lip simple, reddish. 



Pfeiffer, Pro. ZoqI. Soc. November 1854. 



Ilai. Sarawak, Borneo. 



A deprcssly globose horny shell, with a finely margined 

 suture. 



Species 1418. (Mus. Cuming.) 



Helix COSTULIFERA. Ilel. lestd ampUter aperte umbi- 

 licatd, depresso-diicoided, dense arcuatim cottellato- 

 striatd,/uscescente, rufo maculald et sirigald ; npird 

 pland ; anfractiius quinque, parum coneexii, ultimo 

 ad periplteriam obsolete anguhto, basi planato ; aper- 

 lurd fere circulari, labro simplici, marginibmi approxi- 

 7natls. 



The finely-bibbed Helix. Shell largely openly um- 

 bilicatcd, deprrssly discoid, densely arcuately rib-likr 

 striated, brownisli, spotted and streaked with red ; 

 s])irc flat ; whorls five, but little convex, the Inst 

 obsoletely angled at the pcriphcr\-, flat at the base ; 

 aperture nearly circular, lip simple, margins approxi- 

 mating. 



Pfeiffer, Pro. Zool. Soc. November 1854. 



Ilab. Isle of Pines, Australian Seas ; Macgillivray. 



Of the same peculiar type as H. Piiiicola, from tlic 

 same locality, more flatly compressed. 



