Zoological Society. 341 



Hab. supra folia fruticum apud Matnog, Provinciam Albaiensem 

 insulse Luzonicse. 



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

 vered by Mr. Cuming, viz. : — 



a. White, with a Httle 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 lip. 



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

 the circumference. 



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

 subnitens, flava, apice roseo ; spird rotundato-depressd ; anfrac- 

 tibus Z\ convexis, ultimo maximo ; aperturd semilunaris lata, 

 postic^ basi ultimi anfractds gibbosd modificatd ; labio externa 

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

 tundato ; columelld alba, laid, subincrnssatd ; suturd distinctd. 

 Long. 0-9 ; lat. 1 '4 poll. 



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

 Luzonicae 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 

 epidermide obscurd, hand nitente, obtecta ; spird obtusissimd ; an- 

 fractibus 4^, rotundatis, subventricosis, ultimo maximo, ctsteris 

 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. g^nerale et particuli^re 



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

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



Hab. prope 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 depended 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 afforded me of pointing out its cha- 

 racters and making known its several varieties. 



