Zoological Society. 341 



Hab. supra folia friiticum apud Matiiog, Provinciam Albaiensem 

 insulfe Luzonicse. 



The following three varieties of this new species have been disco- 

 vered by Mr. Cuming, viz. : — 



a. White, with a little light brown at the apex and outside the 

 columellar lip. 



b. White, with two brown bands, one anterior to, and the other 

 posterior to, the circumference of the shell ; a dark brown antesu- 

 tural line and a dark brown band outside the columellar lij). 



c. The same as b, with the two brown bands nearly meeting over 

 the circumference. 



Helix aurata. Hel. testa depressiusculo-subglobosa, temds, Icevis, 

 subnite/is, flava, apice roseo ; spird rotundato-depressd ; anfrac- 

 tibus 3^^ coHvexis, ultimo maximo ; aperturd semilunari, laid, 

 postice basi tiltimi anfractds gibbosd modlficatd ; labio externo 

 postice paululum coarctato, deinde subreflexo, albo, crassiori, ro- 

 tundato ; columelld albd, latd, subincrassatd ; suturd distinctd. 

 Long. 0-9; lat. J '4 poll. 



Hab. in foliis arborum ad St. Jaun Provinciam Cagayan Insulse 

 Luzonicee Philippinarum. 



Two varieties of this remarkable and beautiful species have been 

 found by Mr. Cuming. The similarity of the young shell to Helix 

 picta is very great : the full-grown shell differs, however, very much 

 in shape from that species. Both varieties are remarkable for a 

 bright red apex. 



Var. a. Bright yellow, with a scarlet band placed just before the 

 suture, beginning at the second volution and increasing in breadth 

 with the growth of the shell : this var. has also a blue line on the 

 outside a little in front of the scarlet band, which is black within. 

 Var. b. Upper half of the shell bright yellow ; lower half white. 



Helix Roissyana, De F. Hel. testa subglobosa, crassiuscula, la- 

 vis, coloribus plerumque albo, nigroque fasciata, et ut assolent 

 epidennide obscurd, haud nitente, obtecta ; spird obtusissimd ; an- 

 fractibus A\, rotundatis, subventricosis, ultimo maxima, cceteris 

 quadruplo longiori ; suturd distinctd ; aperturd sublunari, intus 

 albd, labii externi margine arete revolutd, nigrd, columellari albd ; 

 columelld rectiusculd, planulatd, albd s. albicante. 

 Helix Roissyana, De Fer. ' Hist. Nat. generale et particuliere 



des Mollusques terrestres et fluviatiles,' tab. 104. f. 2, 3. 

 Long. 1-2; lat. 1-4 poll. 



Hab. propfe Puerto Galero ad Insulam Mindoro, Philippinarum. 

 Five principal varieties of this species are remarkable ; one alone 

 has been represented, though not described by De Ferussac. If the 

 colours alone were to be dejjended upon as specific characters, two 

 of these varieties would be considered distinct species. Deshayes 

 has omitted to mention or to describe this species in his second 

 edition of Lamarck (Anim. sans Vert.) ; I am therefore much grati- 

 fied by having the opportunity aflforded me of pointing out its cha- 

 racters and making known its several varieties. 



