Zoological Society. 469 



size and paler colour at the Isle of Negros, and the other like the 

 last with two brown bands at Mount Isarog. 



Helix brevidens. Hel. testa suborbiculari, subdepressd, tenuius- 

 culd,pallide brunned, lined brunned superne circumdatd; spird sub- 

 planulatd, anfractibus quatuor, superne subplanulatis, ad periphe- 

 riam rotundato-subangulatis, infra rotundatis ; aperturd semiluna- 

 ri, postice depressd, labio externo albo, rotundato-reflexo, antice, 

 prope columellam unidentato, dente brevi, obtuso, albo ; umbilico 

 parvo, labio columellari partim obtecto. 



Long. 0-5 ; lat. 0-8 poll. 



Hab. at Puerto- Galero. 



The epidermis of this species has numerous close-set, very short 

 hairs, which renders it rather rough to the touch. 



Helix gummata. Hel. testa suborbiculari, conico-subdepressd, 

 crassiusculd, superne decussatim striata, infra lavi, nitidd, striis 

 incrementi solum insculptd ; spird conico-subdepressd, anfractibus 

 senis, rotundatis, angustioribus , epidermide corneo, nitido, superne 

 indutis ; aperturd semilunari, labio externo tenui, prope columel- 

 lam subincrassato ; columella profunda. 

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



Hab. in ligno putrido prope Nuevam Insulse Lu^on, Philippinarum. 

 The upper or posterior part of this shell is covered with a thin 

 horny epidermis, which gives it the appearance of having had a coat 

 of varnish or gum spread over it, whence the name. In colour its 

 upper surface is dark brown, the circumference light yellowish 

 brown, then a band of the same colour as the upper surface, and then 

 the lower or anterior part is of the same colour as the circumference. 

 A variety occurs which is smaller and darker coloured, at the same 

 time its brown band in front of the circumference is much broader. 



Helix sphjsrica. Hel. testa sphceroidali, crassiusculd, flavd, 

 lined spirali nigro-fuscescente circumdatd ; haud nitente, spird ob- 

 tusd, anfractibus quatuor ventricosis, ultimo maximo ; aperturd 

 subcirculari, labio externo crasso, reflexo, albo, margine nigro ; 

 columella lata, crassd, alba margine nigricante. 



Long. 0*9 ; lat. 1*0 poll. 



Hab. supra folia arborum prope St. Esteven Provincise Ilocos me- 

 ridionalis Insulse Lu^on, Philippinarum. 



Five varieties of this very brilliant species have occurred to Mr. 

 Cuming; viz. 



a. Bright yellow with a narrow white band close to the suture 

 in front. 



b. Pale brownish yellow : in other respects the same as a. 



c. Bright yellow with a narrow white band close to the suture in 

 front and a broad brown band at the circumference. 



d. Same as a, only having in addition pale brown irregular lon- 

 gitudinal stripes on the last volution. 



e. Same as a, only having in addition bright brown irregular 

 longitudinal stripes on the last volution ; found on the leaves of the 

 Pandanus in the mountains of the Igorro in the north part of Lucon. 



