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Show 592 MR. E. A. S M I T H O N S H E L L S [June 2, touching the margin of the lip, which is pale, oblique, receding, a little expanded and reflexed in front and at the columellar margin, the upper end of which is spread over and nearly conceals the small umbilicus. Height 22^ millim., greatest diameter 19, smallest 16. 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 X X X V I . 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 umbilical 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 peristome. Columellar margin oblique, white 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 (Guppy); Louisiade Archipelago (Anyas). The specimens fiom the Solomon Islands are smaller than the type with which, through the kindness of Mr. G. F. Angas, I 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 peristome, whilst the apex of the spire is in some specimens purple-brown instead of rose. The single shell obtained by Mr. 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 umbilicus; the lip is pink. 14. HELIX (GEOTROCHUS) CLERYI, Recluz. (Plate XXXVI. figs. 6, 6 b.) This species, with which may be united H. helicinoides of Hom-bron and Jacquinot, is subject to considerable variation in size, colour, |