592 MR. E. A. SMITH ON SHELLS [JuHC 2, 



touching the margin of the lip, which is pale, ohlique, receding, 

 a little expanded and reflexed in front and at the columellar margin, 

 the upper end of -whlcli is spread over and nearly conceals the small 

 umbilicus. Height 22^ millim., greatest diameter 19, smallest 10. 



Hab. Faro Island, Bougainville Straits ; " in the higher parts of 

 the island up to the summit, 1900 feet above the sea." 



This species is remarkable for the striking contrast of its colour- 

 bands and the angular character of the last whorl. 



12. Helix (Geotrochus) dampieri, Angas, var. (Plate 

 XXXVI. fig. 5.) 



Shell imperforate, subglobose, conoid, light brown or fawn- 

 colour, here and there minutely dotted with dark-grey specks, with 

 a broad white band around the middle of the penultimate whorl 

 and two upon the last, one above and the other below the middle, 

 also a narrow white line revolving up the spire beneath the suture, 

 and a dark brown zone surrounding the pale or yellowish umbi- 

 lical region. Whorls 5, a little convex above, somewhat glossy, 

 obliquely and very finely striated by the lines of growth, the last 

 more or less concentrically striated beneath, shortly descending at 

 the aperture, which is white within. Lip a little thickened, edged 

 with reddish brown, only slightly expanded on the right side, more 

 dilated below, produced into a thin transparent callosity over the 

 umbilical region, united above to the upper extremity of the peri- 

 stome. Columellar margin oblique, wliite or partly tinged with 

 reddish brown, thickened and terminating below within the edge of 

 the lip. Height 19 millim., greatest diam. 22, smallest 19. 



Hab. Choiseul Bay, Bougainville Straits {Giippy) ; Louisiade 

 Archipelago {Anyas). 



The specimens fiom the Solomon Islands are smaller than the 

 tyfie with which, through the kindness of ^Ir. G. F. Angas, 1 have 

 compared them. They also have the peristome brown, and the 

 basal band is darker. 



13. Helix (Geotrochus) eros, Angas. 



Hab. Shortland Island, Bougainville Straits {Guppy'). 



This species also occurs at Ysabel and Stephen Islands according 

 to Brazier and Angas, being very abundant on trees at Ysabel. It 

 varies considerably in colour, and has not always a rose-tinted peri- 

 stome, whilst the apex of the spire is in some specimens purple-brown 

 instead of rose. The single shell obtained by JNlr. Guppy is dark 

 purple-brown, with a white zone at the suture, which is sparsely 

 marked with dark dots. It has a white band at the periphery, and 

 a broad zone of the same colour around the umbihcus ; the lip is 

 pink. 



14. Helix (Geotrochus) cleryi, Recluz. (Plate XXXVI. 

 figs. 6, 6 b.) 



This species, with which may be united S. heliiinoides of Hom- 

 bron and Jacquinot, is subject to considerable variation in size, colour. 



