230 Zoological Society, 



memoir of G. B. Sowerby, Esq., which was next read : it is entitled 

 " Descriptions of new species of the family of Helicida, collected by 

 Mr. H. Cuming in the Philippine Islands." 



Helix (Cochlogena De F.) polychroa. Hel. testa obovatd, te- 

 nui, nitidd, anfractibus quinque, primis prcesertim, ventricosis, 

 obliqu^ lineis incrementi, striatis, ultimo majori, cceteris duplb 

 longiori, fascia diversicolore, plerumque albd, prope suturam : 

 aperturd suborbiculari, peristomate plerumque albo, extus reflexo ; 

 columella albd, rectiusculd, antice subcallosd, subsinuatd. Long. 

 1-9, lat. 1-3 poll. 

 H. virido-striata, Lea secund. Jay. 



Hab. in foliis arborum ad insulam Temple dictam Philip pinarum. 

 One of the most beautiful, as well as one of the most variable spe- 

 cies in colour. In its general form it is very near var. b. of Lamarck's 

 Helix galactites {H. mirabilis, De F. Hist. Nat. Gen. et Part, des 

 Mollusques terr. et fluv. t. 31 . f. 4 to 6), which has been called H.Phi- 

 lippinarum, but from which it may easily be distinguished by atten- 

 tion to the above characters. The following seven varieties in colour 

 have been brought by Mr. Cuming: viz. var. a. bright green, with 

 darker, longitudinal, oblique, slightly undulated lines and bands, 

 and a white band at the suture : var. b. the same, with the addition 

 of a narrow, very darkly coloured brown band immediately below 

 the white sutural band, and a broad spiral dark brown basal band : 

 var. c. the same, with two additional dark brown bands on the last 

 volution : var. d. bright light brown, with green, slightly undulated 

 oblique longitudinal bands, and a white sutural band : var. e. the 

 same as var. a., but having the sutural band of a light and dark brown 

 colour varied : var./. of chestnut brown, with a white sutural band : 

 var. y. of a dark chestnut brown, with a light orange brown sutural 

 band. 



This species is Helix virido-striata of Lea, according to Dr. Jay ; 

 I know not if that name be published or not. I hope not, because 

 it cannot be adopted, neither being consonant with the rules of no- 

 menclature, nor with classic purity. 



Helix (Cochlogena DeF.) Florida. Hel. testd obovatd, tenui- 

 usculd, haud nitente, anfractibus quinque ventricosis, tenuissime 

 oblique striatis, ultimo majori, ceteris fere duplb longiori ; suturd 

 minutissime crenulatd, albd ; aperturd suborbiculari peristomate 

 latiusculo, reflexo, rotundato, albo ; columelld albd, subincurvd. 

 Long. 1-6, lat. M poll. 

 Hab. in foliis arborum prope Munsolai ad insulam Mindoro Phi- 

 lippinarum. 



This, like the last, is a very beautiful species, and it is also sub- 

 ject to much variation in colour ; its varieties, nevertheless, are not 

 so numerous. It is principally remarkable for its surface being dull 

 like the bloom upon green plums or grapes. The following varieties 

 are exhibited by Mr. Cuming : viz. var. a. of an uniform green, be- 

 coming paler toward the apex, where it is white : var. b. green, with 

 ia brown band close to the white sutural band, and the apex of a 



