HELIX.— Plate CV. 



vexo, reticulalo-striato, rn/o muUifasciato ; aperlurd 

 angulatd, ilepresad, purpureo-violascente ; perklomaie 

 inlus iiicrasstilo, rubicundo. 



TiiE BEAUTIFUL MOUTH Helix. Shell with a covered 

 umbilicus, subconical, sharply keeled, rather flat 

 about the upper part, obliquely striated, stria; inter- 

 rupted, closely decussated with impressed lines, white, 

 encircled with red-\iolet blotches and narrow^ bands ; 

 whorls four to five, rather flat, the last concave 

 beneath the keel, convex at the base, rcticulately stri- 

 ated and profusely red-banded ; aperture angled, de- 

 pressed, purple-violet ; lip thickened inwardly, red. 



Adams and Reeve, Zool. Toy. Samarang, Moll. p. 59. pi. 

 U. f. 7a,4. 



Hah. ? 



A soUd, depressed, sharjily angular species, encircled 



tliroughout with iiTegular reddish-violet and purple-brown 



linear bauds, whUst the aperture is deeply stained with 



Wolct-red. 



Species 586. (Mus. Belcher.) 



Helix decora. Hel. testa imperforatd, conokho-globosd, 

 pallide stramined, epidermide spadiced indutd, oblique 

 striata; anfractibus qtiatuor, planiuscuUi, ultimo sub- 

 carinato ; aperlurd lunato-orbicuhiri, inlus albd; peri- 

 stomate reflexo, albo, nitente. 



The graceful Helix. Shell imperforated, conoidly 

 globose, pale straw-colour, covered with a fawn epi- 

 dermis, obliquely striated ; whorls four, rather flat, 

 the last faintly keeled ; aperture lunar-orbicular, white 

 within ; lip reflected, wliite, shining. 



Adams and Reeve, Zool. Voy. Samarang, Moll. p. C2. pi. 

 16. f. 7. 



Ilab. Island of Mindoro, Philippines ; Adams. 



.\ smooth solid shell of a delicate shining straw-colour, 

 the upper portion of the shell being covered with a fawn 

 cpidci-mis. 



Species 587. (Fig. a, h, Mus. Cuming.) 

 Melix canescexs. Eel. testa subobtecli umbiUcatd,glo- 



bosd, opaco-alid, slrigis obliquis liiieisque plurimis coii- 

 centricit nigricantiius interruptii interdum fascia con- 

 gpicud centrali oniatd ; unfractibus quiiiqut, ultimo 

 rotumlato-injlato ; aperlurd lunato-rotundatd ; perisio- 

 mate inlus incrastaio, in margine columellari calloso. 



The grey Helix. Shell with a partially covered umbi- 

 licus, globose, opake-white, ornamented with obli(|ue 

 blackish streaks and numerous interrupted lines, with 

 sometimes a conspicuous central band ; whorls five, 

 the last rotundately inflated ; aperture lunar-rounded ; 

 lip thickened within, callous at the columcllar edge. 



Adams and Reeve, Zool. Voy. Samarang, Moll. p. 62. pi. 

 16. f. 10. 



Ha6. Africa. 



A globose white shell with simple lip, variously streaked 

 and linear-banded in an interrupted manner with rusty 

 black. 



Species 588. (Mus. Cuming.) 



Helix Batanica. Hel. testd anguste utniilical^, sub- 

 globosd, siiMrali, albidd,fasciis fusco-ruiris circumda- 

 td, epidermide olivaceo-luted indutd ; anfractibu-s quin- 

 que, convexiusculis, transversim oblique strialis, ultimo 

 rotuiidato ; aperlurd transverse lunari; perislomate in- 

 crassato, subrtjlexo. 



The Batan Helix. Shell narrowly umbilicated, some- 

 what globose, sinistral, whitish, encircled with brown- 

 red bauds, and covered with an oUve-yellow epider- 

 mis ; whorls five, rather convex, transversely obliquely 

 striated, the last rounded ; aperture transversely lunar; 

 lip thickened, slightly reflected. 



Adams and Reeve, Zool. Voy. Samarang, Moll. p. 60. pi. 

 15. f. 5. 



Hab. Island of Batan, Bashee Group (under weeds and 

 low plants on the ground) ; Adams. 



Several specimens of this rare species were collected at 

 the above-mentioned locaUty during the voyage of the 

 Samarang, all distinctly characterized, with little or no 

 variation of colour or marking. 



