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Show 148 DR. J. C. COX ON NEW LAND-SHELLS FROM [Jail. 21, Diam., greatest 0*76, least 0*64 ; height 0*92 of an inch. Hab. Solomon Islands. In the collection of Mr. W . H. Hargraves, of Sydney. This species is closely allied to H. adonis of Angas; but after comparing it with a number of specimens of that species I feel sure that it has permanent differences ; it is a much thinner and lighter shell, much more sharply keeled, and much less coarsely sculptured. HELIX MENDANCE, sp. nov. Shell with a deep, broad, open perspective umbilicus, discoid, white, semiopaque, smooth and shining, finely transversely striated throughout with lines of growth, ornamented with two narrow dark brown bands, one immediately above, the other immediately below the periphery of the last whorl, and continuous to the apex of the spire; the last whorl is subcarinated only for a short distance near the insertion of the outer margin of the aperture; spire convexly flattened ; whorls 6, gradually increasing in diameter, the last not depressed ; base convex ; aperture oblique, irregularly subcircular ; margins approximating, joined by a thin brown callus; lip sliglitly thickened and everted. Diam., greatest 0*72, least 0*63 ; height 0*35 of an inch. Hab. Solomon Islands. In m y own collection. A semiopaque, white, flattened species, with a conspicuously open umbilicus, and ornamented with two narrow dark brown bands, one above, the other below the periphery of the last whorl. HELIX (CAMENA) BARNEYI, sp. nov. (Plate XVI. fig. 2.) Shell with a deep open umbilicus, orbicularly conoid, obliquely finely concentrically striated, of a brown-yellow colour, shining, having a broad chestnut band below the suture, and a second narrower band below the subcarinated periphery with an undefined lower margin ; spire bluntly convex; whorls 7, convex, the last considerably deflected for about T 6 0 of an inch in front ; peristome simple, straight; lip everted, margins approximating, joined by a dark-coloured callus; columella irregularly dilated and broadly reflected, half covering the umbilicus; margin of the aperture black within. Diam., greatest 1*30, least 1*10 ; height 1*15 inch. Hab. Barney Island, near New Guinea, Torres Straits. In m y own collection. HELIX HOWINSULCE, sp. nov. Shell very narrowly but openly umbilicated, lenticular, thin, dark brown; spire flatly conoid; suture margined; whorls 6, above standing flatly outwards, very coarsely striated with prominent folds of a thick brown horny epidermis, which terminate at the periphery in a prominent fringe, below corneous, smooth, shining, having there no prominent folds of epidermis ; last whorl not descending in front, sharply keeled; suture narrow and deep, margined with a prominent |