Zoological Society. 385 



has informed me in a note that the Bpecies I have described under 

 the name of decipiens is identical with this species, H. mirahUis, De F, 

 I suspect that he may be right in his opinion, and will take the ear- 

 liest opportunity of re-examining all the varieties of both, together. 

 " At present I will proceed to describe the principal varieties which 

 have occurred to Mr. Cuming, and which are unquestionably refer- 

 able to the mirabilis of De F." 



a. Shell rather thick and strong, with three dark bands, one of 

 which is close to the suture, and much narrower than the others. 



b. Shell very thin, with bands similar to the last. 



c. Shell with the spire much produced, and with three dai'k bands, 

 of which the middle one is very slender. 



d. Shell very thin, with a narrow sutural band, and a broader cir- 

 cumferential band. 



e. Shell thick and strong, with only a very narrow antesutural band. 

 f. Shell thin, and entirely destitute of bands. 



Helix fulgexs. Hel. testa globoso-pyrmniduU, crasshtsciild, ini- 

 perforatd,l(Evi, nitidu, albidd; fpird prominulii, obtusd; anfractibus 

 4\ ventricosis, castaneo-nic/roqut fasciatis ; lineis incrementi tener- 

 rime inscidptis ; aperturd suborbiculari, intds albd ; fasciis nigris 

 subconspicuis ; peritremate reflejco, albo ; columella latiusculd, albd, 

 profundi ineunte. 

 Long 1"5, lat. 1'15 poll. 



Hub. ad Puerto Galero insula3 Mindoroensis Philippinarum. 

 Two principal varieties of this brilliant species have been found 

 by Mr. Cuming ; the one has black and chestnut-coloured bands, 

 beautifully relieved on a light-coloured ground, and the other has 

 the posterior part of each volution nearly white, one dark band close 

 behind the circumference, and three close-set dark bands in front. 



Helix chrysocheilus. Hel. testd subglobosd, crassiuscvld, Icevi, 

 nitidd, imperforatd ; spird mediocri, obtusd ; anfractibus quinque, 

 ventricosis ; lineis incrementi tenuiter inscuJptis, epidermide paUes- 

 cente indutis ; aperturd suborbiculari, intiis albd; peritremate in- 

 crassato, reflexo, aurantiaco ; columelld latiusculd, aurantiacd,pro- 

 funde ineunte ; labio interna tenui. 

 Hab. supra folia arborum ad Banqui provinci?e Ilocos septentrio- 

 nalis ad insulam Lucon Philippinarum. 



A very beautiful species, and apparently very distinct from any 

 that have hitherto been noticed. It is extremely rare. 



The second paper is by G. B. Sowerby, Esq. 



Helix metaformis. De F. var. 



It seems proper to notice the following additional varieties of this 

 species, varieties which have been found by Mr. Cuming in the 

 Philippine Islands, viz. — 



a. Shell pale yellow brown, irregularly covered with a very pale 

 hydrophanous epidermis; circumference of the columella nearly 

 black; one pale brown band anterior to the circumference of the 

 shell ; apex white. Found on leaves of trees near Manilla. 

 Ann. 6)' Mug. N. Hist. Vol. viii. ^ 2 C 



