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Show 416 MR. G. F. ANGAS ON THE MARINE [May 4, 5. CLATHURELLA BICOLOR, Angas, P.Z.S. 1871, p. 18. Port Jackson. 6. DAPHNELLA FRAGILIS, Reeve. Aldinga Bay (Tate). 7. RISSOINA CRASSA, Angas, P. Z. S. 1871, p. 17. Port Jackson. 8. TORNATINA BRENCHLEYI, Angas, P. Z. S. 1877, p. 40. Outside Port-Jackson Heads. 9. LAMELLARIA OPHIONE, Gray. Moreton Bay and New Zealand. The species described below appear new to science. 10. CLATHURELLA CRASSINA, n. sp. (Plate XL. fig. 6.) Shell stoutly fusiformly turreted, solid, whitish, tinged with chestnut at the base of the aperture; whorls 7, rounded and somewhat flattened above, longitudinally strongly nodulously ribbed, and sculptured transversely with numerous fine thread-like striae ; aperture subovate; outer lip thickened, flattened, and variced externally, dentate within; canal short, slightly recurved; posterior sinus rather broad, above which there is a small chestnut-coloured spot. Alt. 4%, diam. 2 lines. Hab. Aldinga Bay, St, Vincent'3 Gulf (Tate). 11. GLYPHOSTOMA PAUCIMACULATA, n. sp. (Plate XL. fig. 7.) Shell fusiformly turreted, solid, white tinged with brown above the sutures, and with three or four irregular dark-chestnut line-like spots near the periphery of the last whorl and on the columella ; whorls 6, with about eight stout somewhat nodulous longitudinal ribs, crossed by smaller transverse ridges that become larger at the back of the outer lip and towards the base ; aperture narrowly ovate ; outer lip flattened and variced externally, slightly sulcate within ; columella with six transverse elevated ribs or ridges ; canal a little produced; posterior sinus rather broad and shallow. Alt. 4, diam. Ii lines. Hab. Aldinga and Holdfast Bays (Tate). This curious shell belongs to the late Dr. Gabb's genus Glyphostoma (fam. Pleurotomidae.). 12. AMAUROPSIS GLOBULUS, n. sp. (Plate XL. fig. 5.) Shell rimate, globosely turbinate, rather thin, shining, orange horn-colour, much paler on the last whorl towards the aperture; whorls 4, convex, with two narrow concentric raised keels on the subapical whorl; last whorl very large, nearly smooth, with a few descending lines of growth, crossed here and there with exceedingly fine, delicate, close-set concentric striae, visible only under the lens ; aperture semilunar; outer lip thin, simple, arcuate; columella slightly thickened and expanded over the umbilicus. Length 2\, breadth 2 lines. Hab. Holdfast Bay, in shell-sand. |
