HELIX. 



Plate LXV. 



Species 331. (Mus. Cuming.) 



Helix tichostoma. Eel. tenia umbilicatd, oriiculari, 

 subdiscoided, aliidd, nitenie ; spird depresid ; anfrac- 

 (Uius quinque, striatu, uUimo rolundato, lamella acuta 

 inlrante in aperlttram indruclo ; umbilico amplo, la- 

 limmo, perspeciivo ; aperlurd suljcirculari, lahro sim- 

 plici. 



The lamell.\ted mouth Helix. Shell unilnlicated, 

 orbicular, somewhat discoid, whitish, shining ; spire 

 depressed ; whorls five, striated, last whorl rounded, 

 furnished with a sharp entering lamella ; \imbilicus 

 large, very broad, perspective ; aperture nearly circu- 

 lar, lip simple. 



Pfeiffer, MSS: (Mus. Cumin g:) '-? 



Hah. ? 



In this little spirally umbilicated species the inner wall 

 of the aperture is furnished with a sharp ridge similar to 

 that which in several other species appears within the 

 outer. 



Species 332. (Mus. Adams.) 



Heli.x spreta. Hel. testa minute umbilicatd, tenui, fflo- 

 bosd, supra depressd, pallide straminea; spird planatd ; 

 anfraclihus tribus l<evi(/atis, ultimo peculiariter tumido ; 

 aperlurd ampld, sublunari. 



The despised Helix. Shell minutely umbilicated, thin, 

 globose, depressed at the upper part, light straw- 

 colour ; spire flattened ; whorls three, smooth, the 

 last peculiarly swollen ; aperture large, sublunar. 



Adams, Catalogue, p. 7. 



Ha6. Jamaica. 



This singular little pea-like species has very much the 

 appearance of an immature shell. 



Species 333. (Mus. Adams.) 



Helix Boothiana. Hel. testa angusQ umbilicatd, conoi- 

 deo-ylobosd, ht/alind, minulissime striatd ; anfractibus 

 quinque, convexis ; aperlurd lunato-ovali ,- peritlomate 

 simplici, acuta, subpatulo, ad umbilicum subrejlexo. 



Booth's Helix. Shell narrowly umbilicated, conoidly 

 globose, hyaline, very minutely striated ; whorls live, 

 convex ; aperture lunar-oval ; lip simple, acute, sub- 

 patulale, slightly reflected at the umbilicus. 



Pfeiffer, in Wicgman's Archives, 1839, p. 351. 

 Hab. Cuba. 



Xn extremely delicate white hyaline shell, somewhat 

 globose in general form. 



Species 334. (Mus. Cuming.) 



Helix CassiqiieXsIS. Hel. tenia minute umbilicatd. 

 conoided, rufo-corned ; apird eletatiuKula ; an/raelilnu 

 quinque, tenuistriatis, ultimo tubobtoUli angulato i 

 aperlurd lunari : peristomate simplici, margine colu- 

 mellari rejlexo. 



The Cassiqui Helix. Shell minutely umbilicated. 

 conoid, red-honiy ; spire rather elevated ; whorls 

 five, finely striated, the last somewhat obsolctely 

 angled ; aperture lunar ; lip simple, columcUnr edgr 

 reflected. 



Newcombe, MSS. (Mus. Cuming.) 



Hab. Cassiqui, Cuba. 



A little shining red-homy species, very minutely umbi- 

 licated. 



Species 335. (Mus. Cuming.) 



Helix albicans. Hel. tfstd cir umbilicatd, depretto- 

 orbiculari, albicante-comed, nitmte ; ipird phno-con- 

 vexd, suturd subimpressd ; anfractibus quinque ad tx. 

 suhrotundatis ; aperlurd lunari, labro simplici. 



The whitish Helix. Shell scarcely umbilicated, de- 

 prcssly orbicular, whitish-horny, shining; spire flaU\ 

 convex, with the suture rather impressed ; whorls 

 five to six, somewhat rounded ; aperture lunar, lip 

 simple. 



Hab. ? 



Of a stout horny substance, but transparent and shining 



Species 336. (Mus. Cuming.) 



Helix cLATHHATILA. Ilel. testa late umbilicatd, sordid 

 albd, epidermide decidud indutd, supra dcpretsd, spirt- 

 liter tiratd, interstitiii trnue clatkratis, iij/ro rottmdald. 

 striatd ; anfractibus sex, ultimo angulato ; uwiiiJtco 

 amplo, perspectico ; aperlurd parc4. luHnri. fupcrni 

 iiiiuatd. 



The LArncED Helix. Shell broadly uuiuuic.iu.i <iirt> 



,/' 



J«nunr\-. 1852. 



