190 MR, E. A. SMITH ON MOLLUSCA FROM JAPAN. [Feb. 18, 



The example of this most wonderfully sculptured species from 

 the latter locality is a little darker in colour than the other. The 

 marking on the upper part of the whorls and the bands on last volu- 

 tion are of a dull purplish brown. 



18. Drillia nagasakiensis. (Plate XIX. fig. 13.) 



Shell elongate, turreted, luteous. Whorls 9 : two apical brown, 

 smooth, convex ; the rest keeled above at the suture, somewhat exca- 

 vated beneath the carina, then convex at the sides, which contract 

 inwards towards the base ; they are closely ribbed and transversely 

 grooved ; the costse are rounded, oblique, sixteen on the penultimate 

 volution, and do not quite attain to the suture, but become obsolete 

 in the sloping concavity above ; the spiral ridges between the sulci 

 number eight on the penultimate whorl ; of these the three upper- 

 most are very fine and situated in the concavity above, the rest are 

 much coarser and subnodulous on the costse ; the latter are attenu- 

 ated inferiorly on the last volution, and become obsolete a little 

 below the middle ; one of them near the tip is considerably enlarged 

 in the form of a varix ; the spiral sulcation also extends over the 

 entire surface. Aperture rather small, occupying a third of the entire 

 length, light brown within ; labrum thin, much produced and ar- 

 cuated at the middle, broadly and deeply notched a little below the 

 suture, and with a second shallow sinuation near the base ; columella 

 suberect, smooth, coated with a thin callosity, terminating above at 

 the sinus in the form of a tubercle ; canal short, broad, but little re- 

 curved. 



Length 17 millims., diam. 5. 



Hab. Station 'i6. 



This species has much the appearance of P. pyramidida of Reeve 

 (Con. Icon. fig. 260). The whorls, however, are more convex at 

 the sides and broader, and the lip is different. The costac are less 

 numerous on the upper whorls than on the lower one, and they 

 gradually become finer as the shell increases, so that those on the 

 last volution are more slender than those on the upper part of the 

 spire. 



19. Drillia loxgispira. (Plate XIX. fig. 14.) 



Shell slender, fusiform, whitish, banded with brown between the 

 costee ; zones two in number on the upper whorl — one a little below 

 the upper suture, and the other at the base. Whorls 10, the two 

 first smooth, convex, the rest somewhat excavated above, obtusely 

 angled at the middle, obliquely costate and spirally striated ; ribs 

 about six on a whorl, oblique, subnodose at the middle, attenuating 

 at both extremities and not reaching to the upper suture ; transverse 

 strice rather coarse, minutely decussated bj' the flexuous lines of 

 growth ; last whorl with a third brown zone below the middle. 

 Aperture whitish within, ornamented with the three exterior bands, 

 occupying about four elevenths of the entire length of the shell ; sinus 

 deep, situated in the upper part of the lip, which is thin, has a 

 second shallow sinuation near the base, and is much produced and 



