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Show 202 MR. E. A. SMITH ON MOLLUSCA FROM JAPAN. [Feb. 18, rather strongly angulated at the middle ; beneath with convex outlines, but sloping or contracted inwards, thus being narrower at the base than at the angle, stoutly plicate and coarsely spirally ridged ; plicae or costae about nine on a whorl, equal in width to the interstices between them, becoming thinner or more or less obsolete in the concavity, on the last whorl attenuated below and produced to the extremity; transverse lira? stout, four or five beneath the angulation, prominent on the ribs, and the same number above the carination, rather finer than the preceding, about twenty in number on the body-whorl; the interstices between are deep, about as broad as the ridges, all of which are finely and somewhat closely imbricately scaled. Aperture half the length of the shell, white within, exhibiting about six tubercles near the labrum; columella smooth, covered with a thin white callosity, only a trifle oblique, tortuous below the middle ; canal short, reflexed. Length 20 millims., diam. 10. Operculum with a lateral subterminal nucleus exteriorly. Hab. Station 27. This species is a close relation of Trophon paivce, Crosse, and Trophon hanleyi, Angas, which two species, judging from the shells alone, might conveniently be placed in Stimpson's genus Urosalpinx; but the operculum of both is fusoid, although not quite typical, and the odontophores have not been examined ; therefore I prefer locating them provisionally in the genus Fusus. Murex calcareus, Dunker (Moll. Jap. p. 5, pi. 1. f. 2), also approaches this species very closely. 47. Fusus NODOSO-PLICATUS, Dunker. Fusus nodosoplicatus, Dunker, Novitates Conchologicac, Abtheil. ii. p. 99, pi. 33. f. 3,4 ; Lischke, Japan. Meer.-Conch, ii. pi. 3. f. 6, variety. Hab. Station 8*. Nagasaki (Lischke). 48. Fusus P E R P L E X U S , A. Adams. Fusus per plexus, A. Adams, Journ. Linn. Soc. 1864, vol. vii. p. 106. F. inconstans, Lischke, Japan. Meeres-Conch. i. pi. 2. f. 1-6, part ii. pi. 3. f. 1-5 ; Schacko, Jahrbiicher der deutsch. malak. Gesellschaft, 1874, p. 115, pi. 6. f. 1-1 d (radula). Hab. Stations 9 and 10. I have no doubt of the identity of Lischke's shell with this species, for specimens of it in the Cumingian collection, probably received by Cuming from A. Adams, answer exactly the description in the ' Japan. Meeres-Conchylien.' 49. Fusus NIGRIROSTRATUS. (Plate XX. fig. 33.) Shell fusiform, brownish, much streaked with very dark brown or black, especially between the plications, with white transverse lira? upon them; rostrum of the last whorl purplish black. Whorls 9, obliquely tabulated and a little concave above, then acutely angu- |