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Show 194 MR. E. A. SMITH ON MOLLUSCA FROM JAPAN. [Feb. 18, tionally much larger; the form is less robust, and the colouring different in detail. 27. DRILLIA FLAVONODULOSA. (Plate XIX. fig. 21.) Shell solid, ovately fusiform, pale fleshy white, banded with yellow on a series of nodules around the lower half of the whorls, stained with reddish brown between the nodules, with a second series of yellow gemmules, with a reddish-brown lira beneath it, situated a little below the middle of the body-whorl. Whorls 7\, apical ones large, the rest undulately carinated above at the suture, then concave, coarsely ribbed and spirally Urate ; two of the lira? (in all six in number) are vastly stouter than the rest, and on crossing the ribs form two distinct series of nodules around the lower part of the whorls ; the other lira? above and below these are fine and threadlike ; beneath the sutural wavy keel on the last whorl are three fine lira?; then follow nine of the coarse nodulous ones ; and around the basal extremity or cauda, which is brownish, are about six finer ones. Aperture small, a little more than one third the entire length of the specimen ; labrum not thickened, rather deeply sinuated in the concavity at the upper part of the whorl; columella smooth, a trifle oblique, very slightly tortuous, covered with a moderately thick livid enamel; canal very short. Length 9\ millims., width 3. Hab. Station 22. This is a solid species, peculiarly coloured, and readily known by the coarse granules. It belongs to the same group as P. inconstans, another Japanese form described by me in the Ann. & Mag. Nat. Hist, in 1875. 28. DRILLIA FORTILIRATA. (Plate XIX. fig. 22.) Shell elongated, horny or dirty white, stained with brown or purplish brown at the extremity of the last whorl. Whorls 12, a little convex, rather coarsely clathrated by longitudinal costae and transverse ridges ; costa? a little oblique, rounded, ten or eleven on a whorl; spiral lirae very prominent, compressedly subnodulous on crossing the ribs, undulating cr festooned, five or six in number, whereof the uppermost (which borders the suture) is especially developed ; last whorl concave below the middle, at which point the ribs terminate, and encircled by about nine fine thread-like lira?. Aperture small, brownish within, equalling about two sevenths of the entire length of the shell; labrum thickened by the last costa, Urate internally, with a small sinus a little below the suture; columella coated with a thin brown callosity, obliquely sinuous, smooth, without lirae or granules; canal short, oblique, faintly recurved, broadish. Length 14 millims., width 3k. Hab. Stations 21 and 14. The lirae within the lip may not be a character of much specific value, as they are only observable in one of the four specimens before me. |