204 MR. E. A. SMITH ON MOLLUSC A FROM JAPAN. [Feb. 18, 



51. Fusus SIMPLEX. (Plate XX. fig. 35.) 



Shell fusiform, white, clothed with a smooth greyish-olive epi- 

 dermis. "Whorls sloping and slightly concave at the upper part, 

 bulging beneath and contracted at the base, carinately margined 

 above at the suture, obliquely nodosely plicate and spirally lirate ; 

 plicae or costse eight or nine on the upper whorls, rounded, large, 

 almost obsolete at the upper part ; spiral lirse about six in number 

 on a whorl, whereof three around the lower portion are the stoutest ; 

 besides these liras, at times a few fine thread-Uke lirulee are present 

 in the interstices. Last whorl with the costse not extending below 

 the middle, lirate throughout, the lirae on the rostrum being very 

 fine and close together. Aperture suboval, together with the canal 

 equal in length to the spire above it ; columella arcuate above, 

 tortuous beneath; canal shorter than the aperture aud a little 

 recurved. 



Length 18 millims., diam. 5|-. 



Hab. Station 29. 



The shell above described may possibly not be of adult growth. 

 It consists of but seven whorls, which is a small number for a species 

 of true Fusus. However, I cannot identify it as the young state of 

 any described species. It is remarkable for the absence of colouring 

 of any kind and the shortness of the canal. The thickened mar- 

 gin of the whorls is rather oblique and scarcely undulating, as the 

 longitudinal plicse are somewhat obsolete at the lower part as well 

 as above. 



52. Fusus coREANicus. (Plate XX. fig. 36.) 



Shell fusiform, dirty diluted flesh-colour, streaked with dark 

 brown upon the costae. Whorls 71-8 ; nucleus consisting of one and 

 a half to two whorls, smooth, globose ; remaining volutions sloping 

 and a trifle excavated above, margined at the suture, somewhat an- 

 gular at the middle, a little convex beneath and much contracted at the 

 base, longitudinally costate and transversely ridged ; costae or plicae 

 only slightly prominent, but little oblique, twelve in number on the 

 penultimate whorl ; spiral lira? close-set, pretty regularly alternately 

 fine and coarser, about twelve on a whorl, whereof three or four 

 around the lower half are larger than the rest and subnodulous on 

 the ribs ; the latter become obsolete about the middle of the liody- 

 whorl, which is rather suddenly contracted just below that point, 

 and produced into a short oblique rostrum. Aperture ovate, fuscous 

 within, with the canal occupying only five elevenths of the entire 

 length ; columella smooth, arcuate above, very oblique inferiorly ; 

 canal short, slightly retroverted. 



Length 22 miUims., diam. 8. 



Hab. Station 29. 



This species is remarkable for the brevity of the canal and the 

 style of colouring. The dark stripes always appear to fall upon the 

 ribs, and they are somewhat interrupted by the stoutest of the 

 transverse lirae, which are rather nodulous and dirty whitish. The 

 thickened margin at the top of the whorls is also pale. 



