HELIX. 



Plate X. 



Species H. (Mus. Cuming.) 

 Helix Lczonica. Hel. testa imperforatd, conko-globosd, 

 crammcultt, oblique striata, rufd, apice sanguined, 

 epidermide fere omnino tectd, medio fascia lata alltidd 

 ornatd; spird conoided ; anfractihus qtdnque ad sex, 

 convexiuscidis ; columella obliqud, dilatatd, tuberculosa; 

 aperturd lunalo-circuhri, intus Incted ; perislomate 

 incrassato, late nfe.ro, alio vet purpureo-roseo late 

 lirniato. 



The Lczon Helix. Shell imperforated, eonically glo- 

 bose, rather thick, obliquely striated, red, rose-pink 

 at the apex, almost entirely covered >nth an epider- 

 mis, ornamented mth a broad white band round the 

 middle ; spire conoidal ; whorls five to six in number, 

 rather convex; columella oblique, dilated, tuber- 

 culiir; aperture lunar-circular, white within; lip 

 thickened, broadly reflected, broadly edged wth 

 white or puqile-rose. 



SowEUBY, PfeilTer, Pro. Zool. Soc. 1842, p. 85. 



Hab. Island of Luzon, Philippines ; Cuming. 



The lip of this species is mostly characterized by a deep 

 purple-rose colour; sometimes, however, it is colourless. 

 The white-lipped varieties are mostly of smaller size. 



Species 42. (Fig. a to/, Mus. Cuming.) 



Helix speciosa. Ilel. testa imperforatd, depresto^lo- 

 bosd, tenui, sid/pellucidd, l<rm, castaned, fulcd, spa- 

 diced, vel olivaced, apice obtuso, purpureo-roseo ; tpird 

 semiglobosd ; anfractibus quatuor ad quinque, rapid* 

 accrescentibus, ultimo magno ; columella plana, drclici, 

 alba; aperturd luiiato-subcirculari, intus lactid; peri- 

 slomate reflexo, extusfusco-marginaio. 



The beactifcl Helix. Shell imperforated, deprcssly 

 globose, thin, semitranspiircnt, smooth, chestnut, 

 fulvous, fawn, or olive, obtuse and purplc-rosc at the 

 apex ; spire semiglobose ; whorls four to five in 

 number, rapidly increasing, last whorl large ; colu- 

 mella flat, slanting, white; aperture lunar-subcir- 

 cidar, wliite witliin ; lip reflected, edged with brown. 



Jay, Catalogue of Shells, 1836, pi. 3. f. 9. 

 Helix coccomelos, Sowerby. 

 Eadem var. Helix crmnyodes, PfeifTer. 



Hau. Island of Tablas, Philippines ; Cuming. 



The most constant character in this species is the purple- 

 rose colouring of the apex. Tlie ground-colour of the 

 shell is dark chestnut, or fawn, or fulvous, or green, Iwinditl 

 sometimes with darker colour, sometimes with strips of 

 light epidermis. Fig. a and b, which are of lighter sub- 

 stance, represent U. cromyodes, PfeifTer. 



April, 1851. 



