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Show / 36 MR. G. F. ANGAS ON NEW MARINE SHELLS. [Jail. 16, very finely longitudinally striated, and showing, beneath the lens, minute transverse striae on the upper whorls ; whorls 7, very slightly convex, flattened immediately below the sutures, the last large, inflated, and hardly subangulate at the periphery ; apical whorls of spire wanting ; sutures impressed ; aperture semilunar, pointed behind and rounded in front; columellar margin arcuate, thickened towards the base; outer lip thin, simple, rounded, a little flattened above. Long. 7, diam. 4| lines. Hab. New South Wales (coll. Brit. Mus.). This curious species I have provisionally placed in Mr. Arthur Adams's genus Apicalia rather than among the true Stylifers. The family Styliferidse requires revision. CERITHIOPSIS PURPUREA, n. sp. (Plate V. fig. 7i) Shell elongately acuminated, moderately solid, purplish brown, with the last rib on each whorl grey; whorls 11 or 12, encircled with rounded equidistant ribs, 4 to a whorl, the last smaller, an extra rib on the base of the last whorl, which is flattened and very minutely striated, the interstices finely longitudinally striated; nucleolar whorl sinistral; aperture quadrately ovate; outer lip thin; columella arcuate and produced in front. Length 3| lines, breadth 1 line. Hab. Dredged off Shark Island, Port Jackson. This species differs from C. crocea, Ang., in being smaller and more cylindrical, with a narrower base, in its style of colouring, and in having the lateral outline less rectilinear. A variety occurs of a pale livid brown colour. CONUS (STEPHANOCONUS) SMITHI, n. sp. (Plate V. fig. 8.) Shell small, stoutly conoidal, irregularly, faintly, longitudinally striated by the lines of growth, finely transversely grooved towards the base, straw-colour clouded with pale chestnut; the upper whorls ornamented with distant dark chestnut flames, a few scattered spots of the same colour, indicating two bands, occurring on the body-whorl, which is encircled throughout with equidistant narrow fillets of a pale hue closely reticulated with chestnut spots ; spire elevated ; whorls turreted, concave, radiately lirate ; apex papillose ; aperture rather wide, the outer lip angled above at its junction with the whorl, nearly straight, and parallel to the columella. Length 5, breadth 3 lines. Hab. Cape Solander, Botany Bay (Brazier). A very prettily painted little species, belonging to the same section as C. rutilis, Menke. DRILLIA ^EMULA, n. sp. (Plate V. fig. 9.) Shell elongately ovately fusiform, purplish brown ; whorls 10, strongly carinated a little below the sutures and sharply angulated in the middle, below which descend irregular longitudinal ribs nodulous at the angle, strongly transversely ridged below the angle, and more finely above, the upper space between the angle and the |