HELIX. 



I'L.vTE CLXXXVII. 



Species 1297. (Mus. Cuming.) 



Helix HYPHASMA. Uel. leal/t vLi umiilicnta, acute co- 

 nica, ban convexd, aemipellucido-albd, subcomed, alriU 

 obliqui arciialls el tpiralibiis decnuatd ; spird elfcald; 

 aii/raclibus nex, concaco-plaiiin, ultimo ad periplieriam 

 aculmimi carinato ; aperlurd seciiri/ormi, lairo sim- 

 pUci, ad umiilicum breoiler rejlexo. 



The web Heux. Siiell scarcely umbilicatcd, sharply 

 conical, convex at the base, semipcUucid-wliile, rather 

 horny, decussated with obliciucly arched and spiial 

 striae ; spire raised ; whorls sLx, concavely flattened, 

 the last very sharply keeled at the periphery ; aper- 

 ture hatchet-shaped, lip simple, shortly reflected at 

 the umbilicus. 



Pfeiffeu, Pro. Zool. Soc. 185t. 



Hab. Ceylon ; Thwaites. 



A subtransparent horny-white concavely conoid species, 

 swollen and convex at the base, and scarcely umbilicatcd. 



Species 1298. (Mus. Cuming.) 



Helix euciiaris. Hel. lesld vix umbilicald, subgloboso- 

 conoided, lenui, pellucido-albd, lulesceiile, tuperne mi- 

 nute yranoHO-decvsaald, infra Itevigatd ; spird subob- 

 tuse conoided ; anfraclibuis sex, couvexis, ultimo acute 

 carinato, ban convexo ; aperturd aubampld, lunato- 

 subtritjond, obliqud, labro nimplici, acuto. 



The graceful Helix. Shell scarcely umbilicatcd, sub- 

 globosely conoid, thin, pellucid-white, yellowish, mi- 

 nutely granosely decussated at the upper part, smooth 

 beneath ; spire rather olHusely conoid ; whorls six, 

 convex, last whorl sharply keeled, convex at the base; 

 aperture rather large, luuar-subtriangular, oblique, 

 lip simple, sharp. 



Deshayes, Ferussac, Hist. MoU. pi. C t A. f. 7, 8. 



Ilab. Solomon's Island. 



Somewhat like the preceding, but more globose, with 



the whorls convex instead of concave. 



Species 1299. (Mus. Cuming.) 



Helix velutina. Uel. testa augmQ umbilicald, tub- 

 globoso-diicoided, niiuutissimi atriatd, epiJeniiii/e lu- 

 tencente velutiiid iudutd; spirtB suturd canaliculatd ; 

 anfractibm quiiique, angiistis, rotundalis, ultimo infra 

 excavato ; aperturd lunari, lairo simplici. 



July. 



TuE velvety Helix. Shell narrowly umbilicatcd, sub- 

 globosely discoid, very minutely striated, covered 

 with a yellow velvety epidermis ; suture of the spire 

 channelled ; whorls five, narrow, rounded, the last 

 excavated beneath ; aperture lunar, lip simple. 



Lamarck, Anim. sans vert. (Deshayes' edit.) vol. viii. p. 63. 



Uab. Island of Porto Rico, West Indies ; Ulauner. 



A swollen species, of a somewhat discoid growth, co- 

 vered with a fine yellowish velvety epidermis. 



Species 1300. (Mus. Cuming.) 



Helix squamosa. Hel. teatd obtecti umbilicatd, globoto- 

 depreud, ad peripheriam carinatd, tranntersim lougi- 

 tudiualUerque atriatd, luteo-fuUd,fuaco irregularitir 

 macula Jd, carinatd, carina iquamoad ; anfractibua quiu- 

 que ; aperturd oblique lunari, lahro reflexu, rubeacenle. 



The scaly Helix. Shell with a covered umhiUcus, glo- 

 boscly depressed, keeled at the periphery, transversely 

 and longitudinally striated, yellowsh-fulvous, im-gu- 

 larly spotted with brown, keeled, keel scaly ; whorls 

 five; aperture obliquely lunar, lip reflected, reddish. 



Ferussac, Hist. MoU. pi. 41. f. 3. 



Hab. Island of Porto Rico, ^Vest Indies ; Blauncr. 



A very characteristic brown-spotted shell, with the lip 

 red-tinsed. 



Species 1301. (AIus. Cuming.) 



Helix subakgulata. Bel. tettd profundi umiUieatd, 

 deprenao-orbiculari, obsolete plicato-striatd, comeo- 

 luteicente, fascia caalaned lupra el duabua infra cin- 

 gulatd ; anfractibui qualuor ad quinque, tuperni de- 

 clici-angulatis, obluai carinatit ; aperturd lunalo-cir- 

 ciilari, labro timplici. 



The slightly angled Helix. Shell deeply umbili- 

 catcd, rather deprcssly orbicular, above obsolctcly pli- 

 cately striated, horny-yellow, encircled with a single 

 chestnut band above and two below ; whoris four to 

 five, slantingly angled at the upper jMirt, obtusely 

 keeled ; aperture lunar-circular, lip simple. 



Pfeiffeb, Pro. Zool. Soc. lSa4. 



Hab. Van Dicmeu's Land ; Ronald C. Gunn. 



A simple yellowish-honiy species, encirclcil with three 

 chestnut bands, one above the jx-ripbcrj- and two below it. 



1854. 



