438 Zoological Society, 



dato-lunari; peristomate simplice, margine super o brevi, recto, 



basali valde arcuato, breviter reflexo* 

 Diam. 10, alt. 4 mill. 

 From Sinait, province of North Ilocos, isle of Luzon (Cuming). 



21. Helix and'icola, Pfr. Hel. testd umbilicatd, depressd, tenui, 

 undique granulatd, opacd, corneo-albidd, fasciis pluribus rufis in- 

 terruptis, denticulatis vel maculoso-tessellatis tieniatd, interstitiis 

 rufo-flammulatis ; spird pland ; anfractibus 4 convexis, ultimo di- 

 latato, rotundato ; aperturd rotundato-lunari ; peristomate tenui, 

 marginibus callo tenui Junctis, supero breviter expanso, basali re- 

 flexiusculo, columellari dilatato, reflexo, umbilicum angustum, semi- 

 tegente. 



Diam. 20, alt. 11 mill. 



From the Eastern Cordilleras* 



22. Helix hians, Pfr. Hel. testd suhobtecte perforata, depressd, 

 tenui, pellucidd, nitidiusculd, undique regulariter et confertim 

 granulatd, pallide corned, strigis angustis, rufis, approxiwatis, 

 undulatis, inter dum ramosis, et ad suiuram fascid pallida, maculis 

 irregularibus rufis tessellatd ornatd ; spird pland ; anfractibus 4| 

 convexis, ultimo infiato, subcompressoy antice vix descendente ; 

 aperturd subobliqud, ampld, lunato-rotundatd, intus concolore ; 

 peristomate tenui, expanso, marginibus distantibus, supero expanso, 

 basali breviter reflexo, columellari membr anaceo -dilatato, fornica- 

 tim reflexo, perforationem tegente. 



Diam. 25, alt. 12 mill. 

 Locality unknown. 



23. Helix rectangula, Pfr. Hel. testd imperforatd, orbiculato- 

 conicd, solidd, striatuld, griseo-stramined, ared basali, lined sutu- 

 rali et fasciis latis castaneis ornatd ; spird elevatd, obtusd ; an- 

 fractibus Q-Q^ convexiusculis, idtimo subrectangule carinato, basi 

 planiusculo, medio subexcavato ; aperturd depressd, subtrapezid, 

 margine columellari incrassato, calloso-subunidentato. 



Diam. 13, alt. 10 mill. 



From the Marquesas islands (M. Rohr). 



24. Helix Nystiana, Pfr. Hel. testd late umbilicatd, depressd, 

 subdiscoided, tenui, sub lente minutissime granulato-striatd, haud 

 nitente, pallide corned, fasciis angustis, rufis 3-4 circumdatd ; 

 spird vix elevatd ; anfractibus 4 convexis, ultimo antice subdefiexo, 

 basi vix latiore ; umbilico latissimo ; aperturd perobliqud, subor- 

 biculari ; peristomate simplice, marginibus ferl- contiguis, supero 

 recto, basali breviter refiexo. 



Diam. 11, alt. 4 mill. 



From Real Llejos, Central America (Cuming). 



25. Helix nilagirica, Pfr. Hel. testd late umbilicatd, depressd, 

 discoided, striatd, corneo-albidd, lined unicd rufd supra periphe- 

 riam cinctd ; spird planiusculd ; anfractibus 5 convexiusculis, 

 lente accrescentibus, ultimo antic^ abrupte defiexo ; umbilico latis- 

 simo, anfractum penultimum lat^ monstrante, medio angusto, per- 



