44 



anfractibus 5 planis, vltimo basi convexo ; apertm'd suhtriangularl, 

 intus nitidd, carned ; peristomate canieo, margine supero subex- 

 pauso, basali reflexo, dente unico valido instructo, columellari 

 stricto, dilatato, adpresso, in<equaliter pluridentato. 



Diam. 57 ; alt. 26 mill. 



Locality unknown. Mus. Cuming. 



5. Helix Bainbridgii, Pfr. Hel. testd umbilicutd, depressd, sub- 

 discoided, solidd, striatd, nndigue gramdatd, cinnamomed, basi 

 pallidd ; spira vix elevaid, obtusd ; anfractibus 5^ planis, ultimo 

 rotundato, basi vix convexo ; aperturd perobliqud, lunalo-subtrian- 

 gulari, intus nitidd, carned; peristomate subincrassato, carneo, 

 marginibus callo junctis, supero late expanso, basali reflexo, dente 

 unico, valido, complanato instructd, columellari perdilatato, umbi- 

 lician mediocrem semi-occultante. 



Diam. 64; alt. 26 mill. 



Found at Demerara by Mr. Bainbridge. Mus. Cumiug. 



6. He"Iix Martiniana, Pfr. Hel. testd obteste perforatd, discoided, 

 acute carinatd, solidd, striatd et ?7iinutissime granulatd, olivaceo- 

 fuscu ; spird depressd ; anfractibus 5 planulatis, ultimo non de- 

 scendente, basi inflato, antice profundė scrobiculato ; aperturd 

 depressd, late angulato-lunari, intus lacted ; peristomate albo, in- 

 crassato, marginibus callo teitui junctis, supero expanso, basali 

 reflexo, dentibus 2 conjunctis, columellari dilatato, dentibus 2 in- 

 eegualibus armato. 



Diam. 34; alt. 14 mill. 



From the island of Jamaica. Mus. Cuming. 



7. Helix Schroeteriana, Pfr. Hel. testd umbilicatd, depressd, 

 lenficulari, acute carinatd, solidd, obsolete granulatd, luteolu, 

 uirinaue rufo-latefasciatd ; spird subelevatd; anfractibus 5 planu- 

 latis, ultimo antice deflexo, basi infiato, antice profunde scrobicu- 

 lato ; aperturd subhorizontali, ellipticd ; peristomate incrassato, 

 late expanso, reflexo,fusco-carneo, marginibus callo junctis, supero 

 leviter arcuato, basali dilatato, umbilicum angustum semitegente, 

 intus 3-4-dentato ; dentibus 2 majoribus basi junctis, 1-2 minori- 

 bus prope columellam. 



Diam. 31 ; alt. 14 mill. 



From the island of Jamaica ; Mr. P. Gosset. Mus. Cuming. 



Intermediate between H. tridentina, Fėr., and H. Martiniana, Pfr. 

 The position of the teeth is the šame, but from the former it is at 

 once to be distinguished by the sharp keel, from the latter by the 

 deflexion of the lašt whorl. 



8. Helix Bruguieriana, Pfr. Hel. testd imperforatd, turbinato- 

 globosd, solidd, nigro- castaned, epidermide hydrophand, fuscd stri- 

 gatd, sursmn pallescente obductd ; spird conoided, apice obtusd, 

 purpured, nitidd; anfractibus 5 convexiusculis, ultimo non descen- 

 dente, basi vix convexo, denudato ; columelld intrante, obligud, 

 strictiusculd, planatd, albd ; aperturd lunato-ovali, intus lacted ; 



