123 



Var. g. Tola brunnca {Fer. Hist. Nat. Moll. Terr, et Fluv. PI. 109. 

 f.3.). 



Mr. Cuming, who found all the shells which I have described, and 

 am about to describe in this paper, on the leaves of trees, informs 

 me that Helix sarcinosa deposits a great number of small eggs on 

 the leaves of the trees in the dark forests wl^re he found all the 

 varieties. After the eggs are deposited on the leaf chosen, the 

 animal wraps it round them subconically, so as to resemble in a de- 

 gree the small paper wrappers in which grocers hand their wares to 

 their customers. 



Obs. Though it perhaps may be considered that Helix sarcinosa 

 may come within the section named Cochlostyla by De Ferussac, 

 there appears to me to be almost a sufficient difference in the form 

 of the aperture, the shape and termination of the columella, and the 

 ventricose character of all the whorls, to justify a separation. The 

 animal I have not seen, and I wait for further information before I 

 decisively make that separation, being anxious to prevent the multi- 

 plication of names, which already involve the student in a sufficiently 

 entangled labyrinth. For the present, therefore, I shall merely ob- 

 serve, that if future observations confirm my present suspicions, I 

 would propose for tiie group the name of Helico-buUnus. 



Helix turbinoides. Hel. testd suhrotundd, subproductd, diaphand, 



lineis incrementi obliqui longitudinaliter striatd ; apice rubente ,■ 



aperturd effusd magnd, caruleo-albente, labii limbo nigro-purpura- 



scent e, lato, recurvo. 



Var. a. Viridis, anfractu penultimo et ultim,o teeniis albis nunc te- 



nuibus nunc latioribus cinctis. Long. 2^ ; lat. 2^ unc. 

 Var. b. Ochraceo-brunnea lineis tcsniisque nigris vittata, anfractw 



basali fascid viridi-nigrd latd cincto. 

 The green colour is beautifully seen where the animal has polished 

 the shell, on turning it up ; but when it is in its natural position it 

 would be difficult to suppose that there were any other colours than 

 the obscure ochraceous or whitish brown and the black lines, fillets 

 and band. On holding the shell between the eye and the light, the 

 green hue becomes perceptible on the back of the shell, and the 

 bands seen transparently through it on holding the aperture toward 

 the eye and against the light, have a very pretty effect. 



Var. c. Tata viridis. 



Hub. ad Albay in insula Luzon. 



Legit H. Cuming in sylvis. 



All the varieties of this noble Helix are about the same size, and 

 at first sight bear no distant resemblance to a Turbo. The apex and 

 two upper whorls in the first and last varieties are reddish-brown, 

 and pale brown in var. b. 



Helix Harfordii. Hel. testd rotundatd, diaphand, anfractibus 

 valde ventricosis, superioribus apiceque complunatis, lineis incre- 

 menti frequenlissime striatd, pallide brunned, anfractu penultimo 

 maculis strigisque angulato-nubilosis vario, anfractu ultimo su- 



