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Show 1879.] MR. E. A. SMITH O N MOLLUSCA FROM JAPAN. 201 into an upturned and curved hollow hook. Its canal too, like examples from the Andaman Islands described by me (P. Z. S. 1878), is rather elongate, and directed to the left, or in an opposite direction to that of the type. Notwithstanding these differences, and a few other slight ones, I feel convinced that they all belong to one and the same species. 44. MUREX (OCINEBRA) FIMBRIATULUS, A. Adams. (Plate XX. fig. 31.) Trophon flmbriatulum, A. Adams, P. Z. S. 1862, p. 375. Shell turgidly subfusiform, turreted, fawn or light reddish, with a narrow interrupted brown band a little above the middle of the last whorl and almost obsolete above, and dark brown at the apex. Whorls 7, the two apical smooth, the rest sloping at the upper part and rather convex beneath, longitudinally nodosely plicated and spirally ridged ; costae or plicae attenuated at the top of the whorls, rounded, about eleven on a whorl ; on the last subnodose at the upper part or shoulder, attenuated and becoming obsolete interiorly ; spiral lirae about nine in number on the upper volutions, whereof the upper three or four on the slope are finer than those beneath, which appear at intervals to be somewhat imbricately scaled; last whorl rather suddenly contracted below the middle, with about twenty-eight transverse lira?, the interstices being moderately deep. Aperture ovate, pale pinkish or flesh-colour within; labrum thin and crenulated at the margin, strengthened with a strong imbricated exterior varix, extending downwards almost to the extremity of the cauda; columella arcuate, pale rose; canal closed, as long as the aperture, curved to the right, slightly retroverted and brown at the tip. Length 19 millims., diam. 7|- Hab. Station 15. Like Murex japonicus of Dunker, this species is remarkable for the absence of varices, with the exception of the postlabral one, in which respect it calls to mind certain species of Tritonium-for example, T. strangei, A. Adams and Angas; but in that and other allied species the canal is not closed. 45. TROPHON, sp. Hab. Station 21. This shell, 1 believe, is the young state of an undescribed species. It is subpyriform, white, purple at the apex, longitudinally plicate, and very beautifully spirally Urate, the lira? being most prettily imbricately scaled. The aperture, together with the canal, occupies two thirds of the entire length (10 millims.). 46. UROSALPINX INNOTABILIS. (Plate XX. fig. 32.) Shell ovately or shortly fusiform, whitish, with two transverse somewhat interrupted brown lines on the last whorl, the upper one of which is visible on the upper volutions. Whorls 9 ; two apical smooth, convex; the rest turreted, concave at the upper part, then |