Zoological Society. 531 



Hab. ad insulam Negros, truncis arborum hserens. 

 Legit H. Cuming in sylvis. 



Helix (Carocolla) Siqiujorensis. Car. testa subcomplanatd 

 anfractibus 4, Uneis incrementi creberrime striata; ultimo maximo, 

 ucitto ; labii subreflexi limbo superiors haud deorsum depresso ; 

 fused, epidermide cinerascente coopertd. 

 Long. I ; lat. If poll. 



Hab. ad radices arboruna et arbusculorum in insula Siquijor. 

 Legit H. Cuming in sylvis. 



The ash-coloured epidermis which covers this species, upon im- 

 mersion in water, disappears, to reappear when it is dry. When it 

 is wet the dark brown ground-colour is exposed. The shell varies 

 to a lighter whitish -brown hue. The sutural line is darker than the 

 general colour, and the lower surface of the expanded edge of the lip 

 is dark brown and shining in each variet}-. The termination of the 

 upper edge of the lip is on the same line with the edge of the body- 

 whorl. 



Helix (Carocolla) Thersites. Car. testa subcomplanatd, gibbd, 

 tenuissimd, hyalind, diaphand ; anfractibus 4, Uneis incrementi cre- 

 berrime striatis, ultimo antice acuta, postice subilh rotundato, yibbo; 

 aperturd magna ; labii antice reflexi limbo subreflexo, flavescente ; 

 anfractibus suturam versus et medio castaneo-fasciatis ; nucleo 

 castaneo. 

 Long. ■§ ; 1| poll. 



Hab. ad Calopan in insula Mindoro, foliis arborum hserens. 

 Legit H. Cuming in sylvis. 



The deformed appearance of this species arises from the flattened 

 and sharp edge of the body- whorl suddenly becoming rounded at 

 about half way. The colouring is pretty, the chestnut bands show- 

 ing to advantage on the transparent amber-colour of the shell. The 

 young shell has no gibbosity. 

 Var. a. Subdiaphana, fascid latissimd nigro-castaned ornata. 

 Hab. cum prsecedente. 



This variety is more opake, and the broad, blackish, chestnut band 

 extends from the suture half-way down the whorls. The base of 

 the shell is broadly bifasciated with the same dark colours, the nar- 

 rowest band being nearest to the outside edge. The termination of 

 the lip in this species is on the same line with the body- whorl. — 

 W. J.B. 



The next paper read was by G. B. Sowerby, Esq. This also con- 

 sists of descriptions of Mr. Cuming's new species of shells. 



Helix modesta. Hel. testd ucuminato-subovali, tenui, albicante, 

 fasciis spiralibus badiis modeste ornata ; spird acuminatiusculd , 

 apice obtuso ; anfractibus 4^ subrotundatis, Icevibus, Uneis incre- 

 menti tenerrime insculptis, ultimo maximo, ventricoso ; suturd di- 

 stinctd ; aperturce margine externo rotundato, intcrno superne an- 

 fractu penultimo modijicato ; columcllari recto, unguium efformante ; 

 peristomate paululiim reflexo, badio ; columelld redd, albd, subin- 

 crassatd. 



2 M 2 



