532 Zoological Society. 



Long. 1-1 ; lat. 08 poll. 



Hab. supra folia arborum, prope Catanauan provincise Tayabas 

 insulse Luzon, Philippinarum. 



An extremely rare species, rather remarkable among its gay asso- 

 ciates of the Philippine Islands for its unpretending modesty of co- 

 louring, as well as for its neat contour. 



Helix pyramidalis. Hel. testa oblong o-pyramidali, hrunned, cras- 

 siusculd ; apice obtuso, saturatiore ; fascia suturali nigro-brunned 

 nonnunquam ornatd ; spird acuminata; anfractibus 5|, leviter ro- 

 tundatis, lavibus, lineis incrementi tenerrime insculptis, ultimo ma- 

 jori, rotundato ; aperturee margine externa rotundato, interna su- 

 perne anfractu penultimo modijicato ; columellari recto, unguium 

 efformante ; peristomate reflexo, subincrassato, brunneo ; columelld 

 rectd, crassiusculd, albd. 

 Long. 1-5; lat. 0.8 poll. 



Hab. supra folia arborum, ad insulam Cuyo, Philippinarum. 

 This species most nearly resembles our Helix incompta, but may 

 be easily distinguished by its proportions, the number of volutions, 

 and its longer, more pyramidal spire. 



Helix acuminata. Hel. testd acuminato-pyramidali, brunned, 

 nigrd, crassiusculd; apice obtusiusculo, pallidiore, spird acuminata ; 

 anfractibus 5, planulatis, Ixvibus, nitidis, lineis incrementi tenerri- 

 me insculptis, ultimo majori, mediane subangulata ; aperturd antice 

 subeffusd ; peristomate externa subincrassato, reflexa, brunnescente- 

 nigra ; columelld albd, subincrassatd, subdeclivi. 

 Long. 1-3; lat. 0-8 poll. 



Hab. supra folia arborum ad insulam Cuyo, Philippinarum. 

 Two specimens only of this species have been found ; it somewhat 

 resembles the last, but may be known from that by its more acumi- 

 nated shorter spire, and by the sides of the volutions being nearly 

 straight, and not rounded. Remains of an opake hydrophanous epi- 

 dermis are to be seen on both the specimens. 



Helix oblonga. Hel. testd oblongd, subcylindricd, tenui, brunned, 

 obscurd, subrugasd ; anfractibus senis, latis, ventricosis, ultimo ma- 

 jori ; suturd distinctd ; aperturd siibavali, postice anfractu ultimo 

 madificuto ; peri.ftomate ampla, subincrassato, reflexo ; columelld 

 albd, subincrassatd, rectiusculd ; umbilico mediocri. 



Long. 1-5; lat. 0-75 poll. 



Hub. supra folia arborum, ad insulam Luban, Philippinarum. 



Somewhat like H. Oomorpha, but distinguished easily by its pro- 

 portions, by the number of its volutions, and by the nature of its pe- 

 ri treme. 



Helix fragilis. Hel. testd subglobosd, tenuissimd, leevi, viri- 

 descente ; anfractibus tribus, raptim crescentibus, ultimo maximo, 

 lineis interruptis fasciisque duabus anticis nlbis ; aperturd mugnd ; 

 peristomute tenui, subreflexo ; columelld tenui, rectiusculd. 



Long, r ; lat. 1"15 poll. 



Hub. supra folia arborum, prope Tanauan ad insulam Leyte, Phi- 

 lippinarum. 



