Zoological Society. 529 



This rare Carocolla excels in beauty and delicacy all the land- 

 shells that I have yet seen. Green is by no means a common colour 

 in the testaceous mollusca generally ; but in the pulmoniferous tes- 

 taceans it is comparatively rare, and, in the cases where it occurs, 

 generally resides in the epidermis, or forms a part of the pattern. 

 But this elegant species, of a delicate transparent green, somewhat 

 between the colour of an emerald and a chrysoprase, is more like a 

 gem than a shell. It does not lie flat like most of the Carocolla, 

 but when placed with its aperture downwards, stands at a high 

 angle. A light-coloured line marks the suture and the edge of the 

 body-whorl, while the expansion of the lip (which expansion termi- 

 nates at the angle of the aperture) is of a glassy clearness. On the 

 under part of the shell, especially, the striae formed by the lines of 

 growth are crossed by other delicate and very frequent transverse 

 lineations. 



Var. a. Anfractus basalis angulo brunneo lineatus. 



The animal of both varieties is grayish white. 



Hab. ad Puerto Galero insulae Mindoro foliis arborum haerens. 



Legit H. Cuming in sylvis. 



Helix (Carocolla) papyracea. Car. testa albo-flavescente, dia- 

 phand, lineis incrementi oblique creberrime striata; columella 

 crassd, excavatd, lata et elongatd ; labii limbo vix expanso. 



Long. J; lat. 1 poll. 



Though this Carocolla may at first sight be taken for a variety of 

 Car. Regince — and such was my original impression — a nearer inspec- 

 tion will detect the distinction between the shells. The spire in 

 Car. papyracea is more elevated, and the shell stands at a higher 

 angle ; the expansion of the lip is not so wide, and it is not termi- 

 nated at about half the distance from the outer edge to the columella 

 (as it is in Car. Regince), but continues until it forms a slight angle 

 below the columella. In Car. papyracea the edge of the expanded 

 lip is the lowest part of the shell, whereas in Car. Regince the white 

 continuous edge of the columellar lip is placed above a green por- 

 tion of the base of the volution, which is prominent below it ; the 

 columella is also quite different ; and these distinctions cannot be 

 attributed to difference of age, for the most complete specimens of 

 each which have furnished the comparison are full-grown. 



Hab. ad Puerto Galero in insula Mindoro foliis arborum haerens. 



Legit H. Cuming in sylvis. 



Helix (Carocolla) Dryope. Car. testa subdiaphand, subpy- 

 ramidali, lineis incrementi creberrime striata et striis transversis 

 levibus frequentissime decussatd ; anfractibus 4, ultimo maximo 

 acuto, ex albido virescente ; apice, labii limbo, et umbilico nigro- 

 castaneis ; aperturd auriculiformi, intus iridescente. 



Long. |- ; lat. 1 poll. 



Hab. ad St. Juan in provincial Cagayan insulae Luzon, foliis arbo- 

 rum haerens. 



Legit H. Cuming in sylvis. 



The sculpture of this species resembles that of Car. Regince, but 

 Ann. $ Mag: N. Hist. Vol. viii. Suppl. 2 M 



