HELIX.— Plate CXCIX. 



Australian species, there is a peculiar typical resemblance 

 in the sculpture and substance of the shell. 



Species 1401. (Mus. Cumiug.) 



Helix pellccida. Hel. testa atiffusti wnbiUcatS, de- 

 pressa, sitbtus convexd, tenui, pelluc'uJo-cortied, palluJe 

 ■itramined, supra minutissime gratiulald, infra laviffatd, 

 iiitente ; spird plano-convexd, ad siUuram margituUd ; 

 anfraclihm quiiiqiie, pUmulalis, ad perip/ieriam an- 

 yulalo-carinalk, deindt; rolundalis ; aperturd angu- 

 lato-lunari, lahro simplici. 



The transparent IIeli.v. Shell narrowly iiral)ilicatecl, 

 depressed, convex beneath, thin, transparent-horny, 

 light straw-colour, above very minutely granuled, be- 

 neath smooth and shining ; spire flatly convex, mar- 

 gined at the snturc ; whorls five, flattened, angularly 

 keeled at the periphery, then rounded ; aperture an- 

 gularly lunar, lip simple. 



Gould, Pro. Nat. Hist. Soc. Boston, U.S. 18i3, p. 157. 



Ilab. West Africa. 



The upper surface of this delicate straw-coloured horny 

 shell is beautifully densely granulated throughout, but so 

 minutely so as not to be discernible without a lens. 



Species 1402. (Mus. Cuming.) 



Helix apia. Hel. testa profmidi uuiiilicatd, depresso- 

 conoided, sublentkulari, dense arcuatim striatd, lutes- 

 ceiite, fascia casianed angustd interdum cingulatd ; 

 spird plano-convexd ; anfraclibus qidnque ad sex, de- 

 cUvibus, ad peripheriam acute compresso-carinatls ; 

 aperturd oblique securiformi, la/iro simplici. 



The bee Helix. Shell deeply umbilicatcd, dcpressly 

 conoid, somewhat lens-shaped, densely arcuately stri- 

 ated, yellowish, sometimes encircled with a narrow 

 chestnut band ; spire flatly convex ; whorls live to 

 six, slanting, shaqily compressly keeled at the peri- 

 phery ; aperture obliquely hatcliet-shapcd, lip simple. 



Hombron and Jacqcinot, Voy. au Pole Sud, pi. 7. f. 9. 



Uab. Island of Annaton, New Hebrides ; Macgillivray. 



A semitransparent homy shell, but of very solid sub- 

 stance, dcpressly slantingly conoid, sharply compressly 

 keeled at the periphery, and a little excavated round the 

 umbilicus. 



Species 1403. (Mus. Cuming.) 



Helix tomentosa. Hel. testa prof unde uuiiilicatd, sub- 

 gloiosd, tenui, superjicie quasi touientosn, cinnamomed ; 

 spird bred, obtusd ; suturd inipressd ; anfraclibus 

 quinque, convexis, ultimo subinflato, circa undiilicuni 

 compresso ; aperturd rotundato-lunari, labro refiexu, 

 cameo. 



The woolly Helix. Shell deeply umbilicatcd, subglo- 

 bose, thin, the surface as though woolly, cinnamon- 

 coloured ; spire short, obtuse ; suture impressed ; 

 whorls five, convex, the last rather inflated, com- 

 pressed round the umbilicus ; aperture rotundately 

 lunar, lip reflected, flesh-tinged. 



Pfeiffer, Pro. Zool. Soc. November, 1854. 



Uab. Sarawak, Borneo. 



A delicate cinnamon-coloured subglobose shell, with a 

 rather broad flesh-tinged reflected lip and minutely hairj' 

 surface. 



