Zoological Society, 437 



15. Helix ceratodes, Pfr. Hel. testd suhperforatd, globoso- 

 depressd, tenui, minute striatd, nitiduld, pellucidd, corned ; spird 

 parilm elevatd ; anfractibus 5 suhplanulatis , celeriter crescentibus, 

 ultimo subdepresso ; aperturd ampld, oblique lunari ; peristomate 

 simplice, acuto, margine columellari breviter reflexiusculo , perfo- 

 rationem fere occultante. 



Diam. 16^, alt. 9 mill. 



Collected on the islands of Luzon and Mindoro, by H. Cuming, 

 Esq. 



16. Helix splendidula, Pfr. Hel. testd lat^ umbilicatd, depres- 

 sissimd, pallide oUvaceo- corned, nitidd, striatuld, lineis concen- 

 tricis, magis minusve distinctis obsolete reticulatd ; spird pland; 

 suturd profundd ; anfractibus 3| subplanulatis , celeriter crescen- 

 tibus, ultimo lato ; umbilico lato, perspective ; aperturd obliqud, 

 lunato-ovali ; peristomate simplice, acuto,' mar ginibus conniventi- 

 bus, dextro oblique descendente, antrorsum subarcuato. 



Diam. 8^, alt. 3^ mill. 



Hab. East Australia, near Torres Strait (Lieut. Ince, R.N.). 



17. Helix papillata, Pfr. Hel. testd umbilicatd, depressd, sub- 

 discoided, solidiusculd, irregulariter stinatd, opacd, albidd, spadiceo- 

 nebulosd, saturatiusque strigatd et maculatd ; spird pland, apice 

 papillatim prominente ; anfractibus 5 planiusculis, ultimo descen- 

 dente, depresso-rotundato ; umbilico angusto, pervio ; aperturd 

 obliqud, lunato-orbiculari ; peristomate simplice, acuto, margine 

 columellari vix dilatato. 



Diam. 23, alt. 11 mill. 

 Locality unknown. 



18. Helix spirulata, Pfr. Hel. testd imperforatd, depressd, len- 

 ticulari, subtilissime striatd, lineis elevatis concentricis utrinque 

 not aid, tenui, fulvd, carinatd; carina compressd, subexsertd ; spird 

 parilm elevatd; anfractibus 5 lente crescentibus, supra carinam 

 convexiusculis, ultimo basi vix convexo, medio impresso ; aperturd 

 depressd, subrhomboided ; peristomate simplice, acuto. 



Diam. 9, alt. 4 mill. 



Hab. Real Llejos, Central America; found on trunks of trees 

 (Cuming) . 



19. Helix insculpta, Pfr. Hel. testd imperforatd, depressd, 

 utrinque convexiusculd, acute carinatd, soliduld, castaned, superne 

 costulis confertis et lined spirali, carina paralleld, insculpta ; an- 

 fractibus 5 planulatis, ultimo basi Icevigaio, j'uxta carinam lined 

 impressd notato ; columelld dente unico brevi, acuto, albo munitd ; 

 aperturd depressd, securiformi ; peristomate simplice. 



Diam. 8, alt. 4 mill. 

 Locality unknown. 



20. Helix sinaitensis, Pfr. Hel. testd umbilicatd, orbiculato- 

 convexd, tenui, confertim striatd, corned ; spird convexd, obtusd ; 

 anfractibus 7 angustis, vix convexiusculis, carind fliformi cinctis, 

 ultimo basi convexiore; umbilico lato, perspectivo; aperturd rotun- 



