Zoological Society, 337 



tice deflexo, constrict o ; aperturd perobliqud, lunato-rotundatd ; 



peristomate cameo, simplice, expanse, rejiexiusculo, marginibus 



callo tenui junctis, basali obsoletissime unidentato, columellari 



brevi, dilatato, adpresso, 

 Diam. 34, alt. 15 mill. 

 Found in the mountain Quendeu at New Granada. 



4. Helix cinerascens, Pfr. Hel. testd imperforatd, globoso-tur- 

 binatd, tenuiusculd, stramined, fasciis 2 latis et area basali nigri- 

 cantibus ornatd, epidermide tenui, hydrophand, cinered, obductd ; 

 spird breviter turbinatd, apice obtusd ; anfractibus 5^ convexlus- 

 culis, ultimo basi injlato ; columelld subarcuatd, carneo-fuscd ; 

 aperturd r otundato -lunar i, intus alba; peristomate breviter ex- 

 panse, subincrassato, castaneo-limbato. 



Diam. 41, alt. 37 mill. 



Found by H. Cuming, Esq. at the island of Masbate. 



5. Helix Turbo, Pfr. Hel. testd imperforatd, turbinatd, solidius- 

 culd, distincte striatd, sub epidermide tenuissimd, decidud, flaves- 

 cente albd, medio rufo-fasciatd; spird brevi, conoided, obtusd; 

 anfractibus 5 convexis, ultimo obsolete angulato, basi vix convexo ; 

 columelld strictd, dilatatd, albidd ; aperturd irregulariter lunari ; 

 peristomate expanse, margine columellari dilatato, reflexo, rimam 

 formante, cum basali angulatim juncto . 



Diam. 43, alt. 35 mill. 

 Hab. Isle of Mindoro. 



6. Helix unicolor, Pfr. Hel. testd umbilicatd, depressd, acute cart- 

 natd, tenui, fused, superne subtiliter striatd, subths lineis nonnullis 

 spiralibus elevatis munitd; spird depresso-conoided ; anfractibus 5 

 planiusculis, sensim accrescentibus , ultimo antice non descendente, 

 basi convexo, ad umbilicum angustum abrupte angulato ; aperturd 

 rhomboided ; peristomate saturate fusco, marginibus callo tenuis- 

 simo Junctis, supero dilatato, expanse, basali ascende?it€, stride, 

 columellari brevi, dilatato, umbilicum semi-occultante, cum basali 

 angulatim juncto. 



Diam. 32, alt. 16 mill. 



Locality unknown. Constantly distinguished from H. Xyster a, 

 Valenc, by its narrow umbilicus, elevated spire, and the number of 

 its whorls. 



7. Helix omphalodes, Pfr. Hel. testd late umbilicatd, depressd, 

 solidd, leviter striatuld, sub epidermide flavescente, decidud albd, 

 ad peripheriam et suturam rufo-cingulatd ; spird vix convexd ; an- 

 fractibus 5 planiusculis, ultimo antice vix descendente, basi paulh 



cenvexiore, circa umbilicum magnum, spiralem, intus castaneum 

 subcompresso ; aperturd perobliqud, lunato-ovali ; peristomate bre- 

 viter refiexo, fusco, marginibus conniventibus. 



Diam. 41, alt. 16 mill. 



Locality unknown. 



8. Helix involuta, Pfr. Hel. testd imperforatd, depressd, su- 

 perne convexiusculd, basi planiusculd, medio impressd, tenuissimdt 



Ann, ^ Mag. N, Hist. Vol, xvi. 2 B 



