Zoological Society. 471 



angtistd tenuique inter anfractum ultimum et partem 'posticam labii 

 positd ; vmbilico parvo, carind obtusd marginato, hdcce carind 

 externam partem canalis angustissimcd basis columellaris effor- 

 mante. Long. 0"7 ; lat. 0"25. 

 Hab. supra truncos arborum apud S. Juan provinciae Cagayan in- 

 sulse Lu^on, Philippinarum. 



This species, which is related to the last and to Cgcl. tortuosum of 

 Gray, approaches very nearly to the genus Pupina, appearing to 

 differ only in having a dull unpolished external surface, while that 

 of Pupina is extremely brilliant. It proves the genera Cyclostoma 

 and Pupina to belong to the same family. 



The next communication is from Dr. L, PfeiflFer, and contains the 

 following descriptions of shells belonging to the genera Helix and 

 Bulimus, also collected by H. Cuming, Esq. in the Philippine Islands. 



Helix zonifera, Sow. Hel. T. imperforatd, subglobosd, tenui, 

 fulvd, zonis variis opacis lutescenti-ulbidis ornatd, obsolete angu- 

 iatd ; anfractibus 4 convexis, supremis depressis ; cohimelld plaiid, 

 recta, elongatd ; aperturd lunato-rotundatd, intiis nitidd ; peristo- 

 mate simplici, expanso, albo, cum callo columellari angulaCimjuncto. 



Diam. 1-60; alt. MO poU. 



Hab. ins. Leyte. 



fl. T. tenuissimd, luteo-virente, basi unicolore, ad peripheriam fascid 

 latd nigr leant e et angustiore albidd, supernt fasciis pluribus albidis 

 hiterruptis ornatd. 



Hab. ins. Leyte. 



y. T. rufo-nigricante, fasciis variis sordide albidis. 



Hab. ins. Samar. 



c. T. crassiusculd, cinnamomed, fasciis lutescenti-albidis. 



Hab. ins. Samar. 



DifFert ab H.pulcherrimd, cul vald^ affinis, spira depressa, anfractu 

 ultimo minus inflato, et columella neque excavata neque dentata. 



Helix Norrisii, Sow. Hel. T. imperforatd, globoso-depressd, so- 

 lidd, glabrd, fulvo-citrind, zonis opacis candidis et infra suturam 

 maculis irregularibus albis notata ; spird semiglobosd ; anfractibus 

 4^ convexis, ultimo ad columellam subexcavato ; columella latd, 

 albo-cullosd, arcuatim prolongatd ; aperturd fere orbiculari, intiis 

 lacted ; peristomate crasso, latissime expanso. 



Diam. I -SO; alt. i'lo poll. 



Hab. insula Lucon, ad Montem Triga. 



Species intermedia inter H. pulcherrimam et zoniferam, ab ilia 

 spira depressa et columella arcuata, ab altera columella excavata, nee 

 angulata diversa. 



Helix luzoxica. Sow. Hel. T. imperforatd, conico-globosd, cras- 

 siusculd, oblique striatd, rufd, apice sanguined, epidermide libera 

 fere omnino tectd, medio fascid latd albidd ornato ; spird conoided ■ 

 anfractibus 5 — 5| convexiusculis ; columelld obliqud, dilatatd, 

 tuberculosd ; aperturd lunuto-orbiculari, intits lacted; peristomate 

 incrassato, late reflexo, albo vel purpiireo late limbato. 



