HELIX. 



Platk CXCVII. 



Species 13S3. (Mus. Cuming.) 



Helix candidissima. IM. testa imperforatu, globota, 

 aoiuld, cretaced, Candida ; spird obtitai conoiJed ; an- 

 fraclibm qiniiqiie, contexts, ultimo anlice dejlexo, obso- 

 lete carina to ; aperturd parviusculd, rotuiidato-luitari, 

 lahro expanso-refiexo. 



The very white Helix. Shell imperforated, gloliosc, 

 solid, chalky, white ; spire obtusely conoid ; whorls 

 five, convex, the last deflected in front, obsolctely 

 keeled ; aperture rather small, rotundately lunar, lip 

 expandcdly reflected. 



Draparnaud, Hist. Moll. p. 89. pi. 5. f. 19. 

 Helix rimosa, Jan. 



Hob. Southern Europe and North Africa. 



Of a solid globose form and clear bright white chalky 

 substance, with rather a contracted aperture. 



Species 1384. (JIus. Cuming.) 



Helix Eddystonensis. Eel. testa suhangusti profundi 

 umJ/ilicatd, conoideo-depressd, versus aperturam ob- 

 liqui producid, minulissime spiraliter striata, slriis 

 subcorniffatis obliquis dense decussalis, sulipellucido- 

 siramined, :onulis duabus castaiwis cingulatd; spird 

 suielevatd; anfractibus qualiior, concexo-declicibus, 

 ultimo obtuse carinato, carina opacd; aperturd ob- 

 lique lunari, Hubkoricontali, labro lali eipamo-rejlexo. 



The Eddystone Helix. Shell rather narrowly deeply 

 umbilicated, conoidly depressed, oblicjucly produced 

 towards the aperture, very minutely spirally striated, 

 stria; densely decussated with slightly wrinkled ob- 

 lique striic, subtransparent straw-colour, encircled 

 with two chestnut zones ; spire rather raised ; whorls 

 four, convexly slanting, the last obtusely keeled, keel 

 opake ; aperture obliquely lunar, rather horizontal, 

 with the lip broadly expandcdly reflected. 



Hob. Eddystone Island, Australia. 



A very characteristic species, of delicate straw-colour, 

 encircled with two narrow chestnut zones ; one above the 

 periphery, which is more opake than the rest of tlic shell, 

 and the other below it. 



Species 1385. (Mus. Cuming.) 

 Helix African a. Uel. testa minute umbilicatd, depresso- 



orbiculari, pellucido-corned, niteiile, minulissime spi- 

 raliter striata, oblique tenuiplicatd ; aufractHjus tez, 

 angustis, plano-contexis, ultimo obtuse carinato, infra 

 convexiore ; aperlurd lunari, labro tenui, simpliei. 



The African Helix. Shell minutely umbilicated, dc- 

 pressly orbicular, transparent-horny, shining, very 

 minutely spirally striated, obliquely finely plicated , 

 whorls six, narrow, flatly convex, the last obtusely 

 keeled, more convex beneath ; aperture broadly lunar, 

 lip thin, simple. 



Pfeiffer, Pro. Zool. Soc. 1849, p. 128. 



Ilab. West Africa. 



A transparent-horny dcpressly orbicular shell, some- 

 times of darker fulvous-brown than here represented. 



Species 1386. (ilus. Cuming.) 



Helix Amazonica. ITel. testa profundi mbamplitrr 

 umbilicatd, depressd, subtus concexiore, densi plicalim 

 corrugato-slriald el granulatd, fulto-brunned, rufo- 

 castaneo ad snfuram punctata ; spird rix elerald . 

 anfractibus quinque, ultimo conspicni carinato, circa 

 umbilicum albicante, lineis rufo-castaneis cingulalo ; 

 aperturd lati lunari, lattro reflexo. 



The Amazon Helix. Shell deeply rather largely um- 

 bilicated, depressed, more convex beneath, densely 

 plicatcly wrinkle - striated and uranulcd, fulvous- 

 brown, dotted with reddish-chestnut at the suture ; 

 spire scarcely raised ; whorls five, the last conspicu- 

 ously keeled, whitish round the umbilicus, encircled 

 with reddish-chestnut lines ; aperture broadly lunar, 

 lip reflected. 



Pfeiffer, Pro. Zool. Soc. November, I'^.'it 



Ilab. Banks of the Amazon. 



Chiefly distinguished from its allied species by the ar- 

 rangement of the colouring and densely pliratoly wrinkle- 

 striated surface. 



Species 1387. (AIus. Cuming.) 



Helix Skinneui. Ilel. testa >' ' ' ' •yi1,craud, 

 soiuld, versus aperturam pn /, undique 



minuti gramitatd, spiraliter lati superjicialitrr tul- 

 catd, lirido-castaned, rpidermide futcd in maculit kit- 

 roglyphicis spiraliter Untiginosd, tubtus rated ; spird 



December, 1854. 



