HELIX.— Platk IX.XIX. 



Benson, Journ. Asiatic Soc. Calcutta, vol. v. p. 351. 

 Hab. North Bengal. 



A reversed rounded horny shell, with one or two more 

 or less obsolete folds upon the body-whorl within the 

 aperture. 



Species 783. (Mus. Cuming.) 



Helix iXFri,.\. Hel. testa vix umbilicnta,pyramidali-tur- 

 binatd, tenuissimd, pellucido-cornea, subtiliter striata ; 

 anfractibus sex ad septem, plaiw-convexia, medio obso- 

 lete carinatis, ultimo basi plano-convexo ; aperturd sub- 

 verlicali, lunari ; peristomate simplici, acuta. 



The tukban Helix. Shell scarcely umbilicated, pyra- 

 midally turbinated, very thin, transpareut-horny, 

 tiuely striated ; whorls six to seven, flatly convex, 

 obsoletely keeled in the middle, last whorl flatly con- 

 vex at the base ; aperture nearly vertical, lunar ; lip 

 simple, acute. 



Benson, Ann. and Mag. Nat. Hist. 1848, p. IfiO. 



llab. Rajmahal Hills, Hiudoostan. 



Of very transparent horny substance, with the whorls 

 faintly keeled. 



Species 784. (Mus. Cuming.) 



Helix pruinosa. lid. testa vix umbilicatd, globosd, 

 tenui, ill/laid, undique creberrimi costellato-plicatd, ru- 

 fexceitte-fnscd, medio pallidifasciatd, non nitente ; spird 

 pared, depressd; suturd impressd ; anfractibus tribiis 

 ad qiiatuor, ultimo multo maxima; aperturd ampld ; 

 peristomate simplici, acuta. 



The ragged Helix. Shell umbilicated, globose, thin, 

 inflatfd, very closely rib-like plicated, reddish-brown, 

 faintly banded in the middle, not shining; spire 

 small, depressed ; suture impressed ; whorls three to 

 four, the last much the largest ; aperture large ; lip 

 simple, acute. 



Pfeiffeu, Pro. Zool. Soc. 1851. 



Hab. St. Domingo ; Salle. 



A pccidiarly formed inflated dull red-brown shell, very 



closely rib-like striated throughout. 



Species 785. (Mus. Cuming.) 



Helix acuminata. Ihl. testd imperforatd, aeuminalo- 

 globosd, solidiuscula, oblique productd, opaco-aUid, 

 liiieit saturatioribu.i sub letile obscure cinr/ulatd ; an- 

 fractibus qualuor, ultimo antice descendrnte ; aperturd 

 oblique ovatd ; peristomate ejfuso, vix refteio, fauct 

 pallide fuscescenie. 



The acuminated Helix. Shell im|)crforated, acumi- 

 nately globose, rather solid, obliquely produced, 

 opake-white, obscurely encircled beneath the len« 

 with faint darker lines ; whorls four, the last de- 

 scending in front ; aperture obliquely ovate ; lip 

 effused, scarcely reflected, interior light brown. 



Pfeiffer, Zeitsehrift Tiir Malae. 1S51, p. IC. 



Hub. St. Domingo ; SaUu. 



A rather solid oblique-globose shell, partaking some- 

 what of the typical form of Helicina. 



Species 786. (Mus. Cuming.) 



Helix Huttoxi. Uel. testa umbilicatd, orbiculata-con- 

 vexiusculd, subdinphand, pallide corned, epidermide 

 scabrd indutd ; anfractibus sex, conceriusculis, ultimo 

 angulato, antice rix descendente ; umbilico latiusculo, 

 perspectico ; aperturd obliqud, lunata-rotundald ; peri- 

 stomate simplici, marginibus connivenlibus, dexlro recto. 

 basali breviter reflexo, columellari subdilatato. 



Hutton's Helix. Shell umbilicated, orbicularly convex, 

 subdiaphanous, pale horny, covered with a rough 

 epidermis ; whorls six, rather convex, last whorl an- 

 gled, a little descending in front ; umbdicus rather 

 broad, perspective ; aperture oblique, lunar-rounded ; 

 lip simple, margins approximating, right margin 

 straight, basal margin shortly reflected, columcllar 

 margin rather dilated. 



Pfeiffer, Symbols;, vol. ii. p. 82. 



Ilelix orbicula, llutton (not of D'Orbigny). 



Hab. Himalaya. 



A horny species, with an open Solarium-\\\i.e umbilicus. 



