Zoological Society. 54<) 



ttcnid subalbldd tcssellatim interruptd in/erne Umhatd cincto, 



fabii limbo subrosaceo. Long. 3 ; lat. 2^ unc. 

 Hab. in insula Masbate. 

 Legit H. Cuming in s)'lvis. 



Var.y. Virescens, anfractu hasali fascia superne subrubrd in/erne 

 albido- tessellatd cincta, columelld subrosaced, labii limbo subrosaceo 

 vix tincto. Long. 3 ; lat. 2^ unc. 



Hab. cum prsecedente. 



This fine variety is blotched with irregular, obscure, ochraceous- 

 white markings, through which pass narrow greenish fillets. On 

 turning up all the varieties, the space polished by the animal strongly 

 contrasts with the rest of the shell, and in all, the reddish band which 

 girds the body-whorl maj^ be traced at the bottom of the upper 

 whorls. In the two varieties last described this band may be clearly 

 seen through the shell on looking into the aperture. In all the va- 

 rieties the two first whorls are plain, and not much differing in 

 colour, viz. brownish or yellowish white. 



The banded varieties, when deprived of the epidermis (in which 

 the other variations of colour reside in all the varieties), appear to me 

 to be Helix {cochlostyla) surcinosa of Ferussac. This species is not 

 noticed in the last edition of Lamarck, by M. Deshayes, and indeed 

 I can find no description of it in Ferussac, excepting " No. 323, 

 sarcinosa, nobis ; a. spira conica. i/ai.L'Amerique? Com.D'Orbigny." 

 If the habitat be correctly stated, there would be some ground for 

 supposing that the Philippine shells which we have described are of 

 a different species ; but the locality is named with a mark of doubt, 

 which the form itself strengthens, whilst the upper figures in Ferus- 

 sac's work (PI. 109), though the bands are much narrower and paler 

 than in those skinned specimens which I have seen, bear so strong 

 a resemblance to them, that I have preferred the retention of Ferus- 

 sac's name. In Mr. Cuming's skinned specimens the rich reddish- 

 brown, broad, transverse band of the bod}'- whorl, and the basal band 

 of the same colour at the base of the other whorls, contrast strikingly 

 with the pure white which is the ground-colour of the shell. A 

 small rosy fillet runs along the upper edge of the body-whorl, near 

 the suture. 



At the bottom of the same plate Ferussac has figured another 

 variety with a uniform brown epidermis. These appear to have been 

 all the materials upon which Ferussac founded his Helix sarcinosa. 



The latter will form a sixth variety, which I have never seen, but 

 which may be thus characterized : 



Var. g. Tota brunnea {Per. Hist. Nat. Moll. Terr, et Fluv. PL 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 where 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- 



