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Show 1871.] DR. J. COX ON NEW LAND-SHELLS. 645 Hab. North end of Expedition Range, Rockhampton, Queensland, Australia (Anderson). This species in its general aspect closely resembles Helix yulei, Pfr.; but from many fine specimens collected by Mr. Anderson I find it unvarying in its characters, of which the occluded umbilicus is most conspicuous. HELIX SCANDENS, sp. nov. (Plate LII. fig. 5.) Shell narrowly umbilicated, turbinately globose, of a dull reddish-yellow colour, thin, transparent, above finely striated throughout, smoother below and shining ; whorls 5-f, gradually increasing in size, convex, last not keeled ; aperture broadly lunate ; peristome simple, thin, columellar margin white and opaque, triangularly dilated over the umbilicus. Diam., greatest 0*13, least 0*11; height 0*09 of an inch. Hab. Port Macquarie, east coast of Australia, 6 feet from the ground on the trunk of a tree. HELIX KEMPSEYENSIS, sp. nov. (Plate LII. fig. 6.) Shell very minute, perforate, globosely conical, thin, pale horny yellow, (microscopically) striated; spire obtuse, conical; whorls 5, slightly convex; aperture lunately oval; peristome simple, thin, margins approached, columellar margin slightly dilated and everted over the narrow umbilicus. Diam., greatest 0-04, least 0*03 ; height 0*03 of an inch. Hab. East Kempsey, MacLeay River, east coast of Australia; found under leaves on wet ground. HELIX MACQUARIENSIS, sp. nov. (Plate LII. fig. 7.) Shell broadly, openly, and deeply umbilicated, flatly depressed, thin, transparent, very shining, glossy, yellow, striated above with rather irregular coarse lines of growth, below smoother and finely spirally striated, faintly rayed with broad chestnut-coloured markings ; whorls 4g, rapidly increasing at the last, rather flat and margined at the suture; apex scarcely raised ; aperture almost round, slightly lunate ; peristome blunt and darkened, margins closely approached, columellar margin not expanded. Diam., greatest 0*14, least 0*11; height 0*06 of an inch. Hab. Port Macquarie, east coast of Australia; under leaves on damp ground. HELIX GUADALCANARENSIS, sp. nov. (Plate LII. fig. 8.) Shell imperforate, trochiform, rather solid, finely obliquely arcuately striated, pale yellow-brown, ornamented with broad or narrow dark chestnut lines, sometimes almost absent; spire turbinate; whorls 5g, slightly convex, the last rather inflated, not descending in front; aperture large, very oblique, irregularly lunately rounded, inclining to be angled at the periphery of the body-whorl; peristome white, porcellaneous, broadly expanded, margined with black exter- |