294 Zoological Society. 



distanter arcuato-costatd et sub lente minutissime spiraliter 

 striatd, fasculd, brunneo-tessellatd ; spird fornicatd, superne 

 depressd ; anfractibus 8^ angustis, carinatis, ultimo infra pe- 

 nultimum recedente, tertiam pagincB inferte penultimi partem 

 liberam relinquente, basi vix convexiusculo, obsolete radiatim 

 costato, distinctius concentric^ striato ; umbilico lato, extus 

 lamind horizontali coarctato ; aperturd depressd, securiformi, 

 lamellis 6 intrantibus munitd : 2 in pariete aperturali, 2 in 

 margine basali, 1 in supero, 1 denti/ormi in columelld ; peri- 

 stomate simplice, recto, acuto, margine basali retrorsum in la- 

 minam, umbilicum coarctantem, continuatd. 



Diam. 6i, alt. 3^ mill. 



Hab. in insula Tahiti. 



13. Helix nympha, Pfr. H. testd imperforatd, globoso-de- 

 pressd, tenui, obliqud striatuld, nitidd, diaphand, virenti-albidd ; 

 spird brevissimd, apice obtusd ; suturd albo-Jilosd ; anfractibus 

 4 subplanis, rapide accrescentibus, ultimo subdepresso, basi con- 

 vexo ; columelld intrante, subverticali, compressd, albd; aper- 

 turd obliqud, lath lunari ; peristomate simplice, tenui, castaneo- 

 limbato, margine supero recto, basali breviter reflexo, cum colu- 

 melld angulum obtusum formante. 



Diam. maj. 32, min. 26, alt. 18 mill. 

 Hab. in insulis Philippinis. 



14. Helix tricolor, Pfr. H. testd lenticulari-conoided, tenui, 

 carinatd, undique confertim concentrice striatd, hyalind, su- 

 perne Uneis albis et ad suturam fascid albd, castaneo-punetatd 

 ornatd; spird brevi, conoided, apice obtusd; anfractibus 4 pla- 

 niusculis, ultimo carind albd, Uneis castaneis marginatd et arti- 

 culatd munito, superne et ad carinam subitb deflexo, basi juxta 

 columellam subgibbo ; aperturd angustd, perobliqud, subqua- 

 drangulari ; peristotnate simplice, castaneo-limbato, margine 

 dextro recto, basali breviter reflexo, columellari perdeclivi, in- 

 trorsum dilatato, excavato, saturate castaneo. 



Diam. maj. 34, min. 29, alt. 17 mill. 

 Hab. St. Ctiristoval, ins. Salomonis. 



15. Helix recedens, Pfr. H. testd imperforatd, subsemiglo- 

 bosd, solidd, carinatd, superne confertim costulato-striatd, pal- 

 lide earned; spird fornicatd ; suturd vix impressd ; anfracti- 

 bus 6 planiusculis, lente accrescentibus, ultimo a medio infra 

 penultimum recedente, basi planiusculo, striato; carind rufo- 

 lineatd ; aperturd obliqud, angulato-lunari ; peristomate sub- 

 simplice, margine dextro recto, basali subincrassato, columellari 

 brevissime reflexo. 



Diam. 12, alt. 7 mill. 

 Locality unknown. 



16. Helix Salleana, Pfr. H. testd imperforatd, conicd, tenui- 

 usculd, striatuld et impressionibus obsoletis rugosuld, parum 

 nitidd, diaphand, cinereo-lutescente, ad peripheriam fasciis 2 

 fusco-viridibus, punctisque castaneis ornatd; spird conicd, acu- 



