264 Zoological Society. 



DifFert ab Hel. latitante magnitudine, colore et sculptura minutis- 

 sima. 



Helix semiglobosa, Pfr. Hel. T. suhperforatd, semiglolosd, tenui, 

 lutescenti- corned, supra minutissime granulatd ; suturd vix im- 

 pressd; anfractibus 6 planis, ultimo carinato, infra carinam Icevi- 

 gato, nitido, fascia dilutd hrunned notato ; umhilico angustissimo ; 

 aperturd lunari-ellipticd, intus fasciatd ; peristomate simplice, 

 acuto, margine columellari late rejlexOy umhilicum semitegente. 



Diam. 22; altit. 13 lin. 



From the isle of Zeyte : found on leaves of trees. (Cuming.) 



/3. Anfractu ultimo magis infiato, saturatius hrunnescente (Catba- 

 longa, isle of Samar). 



Helix obtusa, Pfr. Hel. T. imperforatd, suhglohosd, tenui, striis 

 incrementi et lineis impressis concentricis obsoletis suhdecussatd, 

 nitidd, Icete castaned ; spird suhelevatd, obtusd ; anfractibus 4 con- 

 vexis, ultimo inflato ; columella obliqud, acuta, albd ; aperturd dila- 

 tatd, subauriformi, intus margaritaced ; peristomate simplice, ex- 



Diam. 17|; altit. 13 lin. 



From Catanauan, province of Tayabos, isle of Luzon : found on 

 leaves of bushes. (Cuming.) 



/3. Alba, minor (diam. 15 ; altit. 10 lin.). From Zigas, province of 

 South Camarines, Luzon : found on leaves of trees. 



Helix filaris, Valenc, Mus. Paris. Hel. T. imperforatd, depresso- 

 globosd, tenui, striis incrementi validis notatd, albidd, epidermide 

 pallide corned decidud munitd ; spird paritm elevatd, obtusd ; suturd 

 lineari, albo-marginatd ; anfractibus 4 planiusculis, ultimo obtuse 

 angulato ; columelld obliqud, margine granulosd ; aperturd dilatatd, 

 lunari ; peristomate nigro, subincrassato, parttm expanso. 



Diam. 19 J; altit. 12^ lin. 



From the island of Marinduque : found on leaves of trees. (Cu- 

 ming.) 



Intermedia inter Hel. Valenciennesii et virginem. 



Helix constricta, Pfr. Hel. T. imperforatd, semiglobosa, nitidd, 

 concenirice minutissime striata, jlavo -albidd, fasciis 2fuscis inter- 

 ruptis ad peripheriam ornatd ; anfractibus 4^ convexiuscuUs , ul- 

 timo basi subplanato, ad aperturam subitb descendente, constricto ; 

 aperturd lunari, intus nitide flavd ; peristomate acuto, albo, lat^ 

 refiexo, margine basali subincrassato; ared columellari callosd, 

 subexcavatd. 



Diam. Ill; altit. 6^ lin. 



From Calapan, island of Mindoro : found on leaves of trees. (Cu- 

 ming.) Affinis sequenti. 



Helix paradoxa, Pfr. Hel. T. imperforatd, globoso-depressd, 

 nitidd, concentrice subtilissime et confertissime striatd, virescenti- 

 flavd, apice nigro-violaceo, ared basali saturate castaned ; anfrac- 

 tibus 5 planiusculis, ultimo irregulari, lateraliter subcompresso , 

 prope aperturam tumido ; aperturd lunari-ellipticd; peristomate 



