HELIX. 



Plate XXV. 



Species 71. (Fig. a, b, c, Mus. Cuming.) 



Heli.x balteat.\. ITel. testa impcrforatd, eloiigato-glo- 

 bosd, solidd, palUdi sulphured, zunis viridibus el griseo- 

 molacein eleganlissime nolald, apice obluso, plerumque 

 rosea; anfraclibus guinque, couvexiusculis ; columella 

 lata, perobliqud, supeme obsolete tuberculatd, albd, 

 purpureo-roseo t'mctd ; aperturd lunari ; peristomate 

 subincrassato, vix expanso, extus viridi, intus violaceo. 



The belted Helix. Shell imperforated, clongately glo- 

 bose, solid, pale siilpliur-colourud, elegantly marked 

 with green ami greyish-violet zones, ape.x obtuse, 

 mostly rose ; whorls five, rather convex ; columella 

 broad, very oblique, obsoletely tubercled at the upper 

 part, white, tinged with purple-rose; aperture lunar; 

 lip somewhat thickened, slightly expanded, green 

 without, violet within. 



Sowerby, Pro. Zool. Soc. 1840, p. 136. 



Hob. Island of Luzon, Philippines. 



The predominating colours of this species, in which 

 there is little variety, are in grey and green rings upon a 

 bright yellow ground, the apex and columella being 

 mostly tinged with purple-rose. 



Species 107. (Fig. a, b, Mus. Cuming.) 



Helix festiva. Hel. lestd imperforald, crassd, globoid, 

 purpura-icente-rosed, epidermide hydruphand, fasciatd 

 et oblique striald, iiidutd; spird obtuse conicd; an- 

 fraclibus quinque, subrotundatis ; columelld obliqud, 

 inlrante, vivide rosed; peristomate valde incrassato, 

 latti expanso, roseo. 



The festive Helix. Shell imperforated, thick, glo- 

 bose, purple-rose, covered with a banded and obliquely 

 streak('(l hydroplianous epidermis ; spire obtusely 

 conical; whorls tive, somewhat rounded; columella 

 oblique, entering, bright pink ; lip very much 

 tliickened and broadly expanded, pink. 



Donovan, Naturalist's llcpository, vol. iii. pi. 103. 



Hob. San Juan, Province of Cagayan, Island of Luzon, 

 Philippines ; Cuming. 



This elegant species was described and admirably 

 figured many years since by Mr. Donovan in his ' Natu- 

 ralist's Hepository,' from a specimen in the possession of 

 Mrs. Mawe. It partakes of the characters of the H.pid- 

 cherrima and Luionica, subsequently discovered by Mr. 

 Cuming at the Philippine Islands, and is from the same 



locality. It is chiefly distinguished by its solid globose 

 form, and broadly expanded thickened lip. 



Species 108. (Fig. a, b, Mus. Cuming.) 

 Helix perdita. Hel. tesld imperforald, globoso-conicd, 

 ienuiculd, oblique striatuld, apice subobtiud, c<trulto- 

 albicatite, apice rufo-aurantid, iiiterdum omnino rufo- 

 auraulid; anfraclibus quinque ad sex, contexis ; colu- 

 melld arcuatd, subintrante ; aperturd orbicukri-otata, 

 subverlicaU ; peristomate tenui, parum reflexo. 

 The lost Helix. Shell imperforated, globosely conical, 

 rather thin, obliquely finely striated, rather obtuse 

 at the apex, bluish-white, red-orange at the apex, 

 sometimes entirely red-orange; whorls five to six, 

 convex ; columella arched, somewhat entering ; a])er- 

 ture orbicularly ovate, nearly vertical ; lip tliin, but 

 little reflected. 

 Hab. Island of Batan, north of the Philippine group; 

 Belcher. 



A considerable number of this species, extremely deli- 

 cately coloured, were collected at the above-named island, 

 by Sir Edward Belcher, during the voyage of the San-a- 

 rang. It was thought to be a variety of H. Buschi, but 

 does not agree with Dr. Pfeiffcr's description of tliat ^ 

 species. 



Species 109. (Fig. a, b, c, Mus. Cuming.) 

 Helix Iloconensis. Eel. testa imperforald, ovatc-glo- 

 busd, crassiusculd, lavi, coloribus dirersissimis ornatd ; 

 spird coiioided, obtusd; anfraclibus quinque, concexim- 

 culis ; columelld subrecld, laid ; aperturd lunalo-ovali, 

 intus laded ; peristomate albo, simplici, late expamo, 

 margine dextro extus medio impresso. 

 The Ilocos Helix. Shell imperforated, ovatcly glo- 

 bose, rather thick, smooth, ornamented with dif- 

 ferent colours ; spire conoid, obtuse ; whorls five, 

 rather convex; columella nearly straight, brond ; 

 aperture Imiar-oval, milk-white within ; lip wliitc, 

 simple, broadly expanded, right margin impressed 

 without in the middle. 

 SowEKBV, Pro. Zool. Soc. 1840, p. 110. 

 Ilab. Province of Uocos, Island of Luzon, Philippines ; 

 Cuming. 

 Mr. Sowerby enumerates eighteen varieties of this spe- 

 cies. They partake mostly of yellow and grey, encireletl 

 with light and red rings. 



June, 1851. 



