HELIX. 



Plate LXXXVII. 



Species 468. (Mus. Cumiiig.) 



Helix unouicula. Hel. lesid umbUicald, discoided, le- 

 vi/er striata, aurantid, albido aliquaiido fasciatd, m- 

 perne plaiid ; suturd distiiictd ; atifraclibus qidnque 

 ad sex, planulalis, ullimo lereti, antici vix descendente ; 

 umiilico mfimdibuUforml ; aperturd luimri ; perkto- 

 mate rejiexo, margiiiibiis callo tenuissimo junctis. 



The little nail Hklix. Shell umbilicated, discoid, 

 faintly striated, orange, sometimes encircled by a 

 white band, flat at the upper part ; suture distinct ; 

 whorls five to six, rather flattened, the last lengthened, 

 slightly descending in front; umbilicus funnel-shaped; 

 aperture lunar; lip reflected, margins joined by a 

 very thin callosity. 



Feuussac, Hist. Moll. pi. 76. f. 3, -i. 



Uab. Java. 



This species differs from //. uiigulina in its more dis- 

 coid growth, and broader flatter spire. 



Species 469. (Mus. Cuming.) 



Helix Gruneki. Hel. testa umbiUcatd, depressd, su- 

 pente planiusculd, miiiutissime punctalo-slriatd, au- 

 rantio-riifd ; anfractlbus quinque ad sex, sensim accre- 

 scentibus, planiiiscidis, ultimo rotiiiulato, rcflexo, atilici 

 vix dejlexo ; umbilico anyuslo, pervio ; aperturd sitb- 

 verticali, depressd, late litnari ; peristomate incrassato, 

 rejiexo, marginibus callo teiiui, supenie dentem arcua- 

 tiim valit/ttm formanle, junctis. 



Gruner's Helix. Shell umbUicated, depressed, rather 

 flat at the upper part, very minutely puncture- 

 striated, orange-red ; whorls five to six, increasing 

 slowly, rather flattened, the last rounded, a little 

 deflected in front ; umbilicus narrow, open ; aper- 

 ture subvertical, depressed, broadly lunar ; lip thick- 

 ened, reflected, margins joined by a thin callosity, 

 forming at the upper part a strong arched tooth. 



Pfeiffer, Pro.Zool. See. 1845. p. 63. 



nab. ? 



An interesting species, allied to the preceding, but uni- 

 formly of smaller size, distinguished by having the callo- 

 sity which joins the margins thickened and raised into n 

 strong edge. In other words, the reflected lip is carried 

 across the body-whorl 



Species 470. (ilus. Cuming.) 



Helix circcmdata. Hel. letld umbUicald, tubditcoided, 

 superne concacd, lavigatd, albidd, lineia aarantio-ruji* 

 nuiiierosis anguatis ri-gulcribua ornatd ; tpird concacd, 

 granulald; aiifraclibus quiuque ad sex, conrexiutculis, 

 priinis paucis angustisaimia, ultimo baai aubplaualo, 

 medio excavato ; umbilico mediocri ; aperturd mbcrr- 

 ticali, aiiguald, lunari ; peristomate aubreflrxo. 



The suruolnded Helix. Shell umbilicated, subdiscoid, 

 concave above, smooth, wlutish, regiUarly omnmenicd 

 with numerous narrow orange-red lines ; spin- oim- 

 cave, granulcd ; whorls live to six, rather convex, 

 the tirst few whorls very narrow, the last rather flat 

 at the base, hollowed in the middle ; umbilicus 

 middling ; aperture subvertical, narrow, lunar ; lip 

 thinly reflected. 



Ferussac, Hist. Moll. pi. 77. f. 1. 



Hab. Moluccas. 



Of the same peculiar type as the two preceding species, 

 pencilled with numerous orange-brown lines, sometimes 

 conglomerated iu parts into a band. 



Species 471. (..Mus. Cuming.) 



Helix .mamilla. Hel. testa tubangutti HmbUieatd, gU>- 

 bosd, taUe rugosd et oblique corrugald, /HlreaeeHU, 

 fusco bifasciatd ; spird seiiiigloboad ; anfractibH' arj, 

 coHVexis, senaim accresceiitiius ; aperturd perulilii/ua. 

 irregulariter lunato-ocali; peristomate tali expatuu, 

 dense rejiexo, albido, marginiius callo juuctit, batati 

 dilatato, umbilicum semitegente. 



TUE NIPPLE Helix. Shell rather narrowly umbilicalitl, 

 globose, very rough and obliijuely wrinkled, fulvous, 

 two-banded with brown ; spire semiglobosc ; whorls 

 six, increasing slowly ; ajKrlure ven,- oblique, im- 

 gularly lunar-oval; lip broadly expanded, thickly n- 

 flected, whitish, mnrgins joined by a callosity, basal 

 margin dilated, half-covering the umbilicus. 



Ferussac, Hist. .Moll. pi. io. f. I. 2. 



Hab. Isbnd of Celebes. 



.\ broad globose shell, with tin- surface peculiarly rough 

 and wrinkled. 



April, 1852. 



