HELIX.— Plate CVI. 



Species 593. (Mus. Cuming.) 



Helix Kusteki. Hel. testa mibunibilicatd, orbiculato- 

 convexa, aoUdd, striata, carinatd, castanea, apice/uhd; 

 spird parum elevatd, obtusd ; suturd marf/inatd ; an- 

 fractibus sex ad septem, convexiusadk, ultimo aiitice 

 turn descendeiite, basi vix convexo ; aperturd depressd, 

 Imiato-triaiif/ulari ; peristomate recto, margine siipero 

 simplici, anlrorsum arcuato, bamli stricliusculo, calloso, 

 tncrassato, colmnellari brevissimo. 



Kustek's Helix. Shell slightly umbilicated, orbicularly 

 convex, solid, striated, keeled, chestnut, fulvous at 

 the apex ; spire but little raised, obtuse ; suture mar- 

 gined ; whorls six to seven, rather convex, the last 

 not descending in front, slightly convex at the base ; 

 aperture depressed, lunar-triangular ; lip straight, 

 upper margin simple, arched in front, basal margin 

 rather drawn out, callous, thickened, columellar mar- 

 gin ver\' short. 



Pfeiffee, Zeitsclirift fiir Malae. 1845, p. 153. 



Hab. Tahiti. 



A dark solid shell, nearly allied in form and general 

 character to H. cunilabrum. 



Species 594. (ilus. Cuming.) 



Helix dilct.\. Ud. testa umiilicatd, depressd, orbicu- 

 lari, teitiii, pellucidd, Jlato-comed, faiciii omatd, me- 

 dia saturate rufd, superd et inferd latioribu* dilutit ,- 

 anfradibus quatuor, planiiuculis ; umbilico anijutto, 

 pernio; aperturd perobliqud, lunari ; peristomate sim- 

 plici, margine columellari expanso, cameo. 



The washed Helix. Shell umbilicated, depressed, or- 

 bicular, thiu, pellucid, yellowish-horny, ornamented 

 with three bands, the middle one dark red, the upper 

 and lower ones fading into the ground-colour of the 

 shell ; whorls four, rather flat ; umbilicus narrow, 

 open ; aperture very oblitjue, lunar ; lip simple, co- 

 lumellar margin expanded, flesh-tinged. 



Pfeiffek, Symbola;, vol.ii. p. 27. 



Ilab. Cusco, Peru. 



Banded with dark chestnut on a thin greenish ground. 



