38 



April 22, 1845. 



Richard C. Griffith, Esq., in the Chair. 



" Descriptions of new species of Helix, in the cabinet of H. Cu- 

 ming, Esq.," by Dr. L. PfeifFer. 



Helix pondehosa, Pfr. Hel. T. imperforatd, subglobosd, tumidd, 

 solidd, ponderosd, Iceviusculd (striis incrementi et concentricis con- 

 fertissimis vix perspicuis), albd, basi epidermide nitidd, pallide 

 corned indutd ; anfractibus 4į convesiusculis, ultimo subangulato, 

 fasciis albis hydrophanis infra angulum obsolete notato ; columelld 

 rectd, latd, perobliąud ; aperturd subauriformi, intus albd ; peri- 

 stomate late reflexo. 



Diam. long. 23 ; transv. 17 ; altit. 13^ lin. 



From Banguey, province of North Ilocos, isle of Luzon : found on 

 leaves of trees. (Cuming.) 



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

 sima. 



Helix semiglobosa, Pfr. Hel. T. subperforatd, semiglohosd,tenui, 

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

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

 gato, nitido, fascid dilutd hrunned notato ; įimbilico angustissimo ; 

 aperturd lunuri-eUipticd, intus fasciatd ; peristomate simplice, 

 acuto, margine columellari late reflexo, umbilicum semitegente. 



Diam. 22; altit. 13 lin. 



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



/3. Anfractu ultimo magis inflato, saturatius brunnescente (Catba- 

 longa, isle of Samar). 



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

 incrementi et lineis impressis concentricis obsoletis subdecussatd, 

 nitidd, leete castaned ; spira subelevatd, obtusd ; anfractibus 4 con- 

 vexis, ultimo inflato ; columelld obliqud, acutd, albd ; aperturd dila- 

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

 panso. 



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 Žigas, 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 parum elevatd, obtusd ; suturd 



