1879.] MR. E. A. SMITH ON MOLLUSCA FROM JAPAN. 203 



lated, contracted to the base, lon^^itudinally plicate, and prominently 

 spirally ridged ; plicae suberect, becoming obsolete above the angu- 

 lation, ten on the penultimate whorl ; transverse lirae of different 

 thicknesses, two around the middle and one at the lower suture of 

 the whorls specially prominent, forming acute compressed transverse 

 nodules upon the costae ; about fourteen on the upper whorls, all 

 subgranose through being crossed by deep striaj of growth ; on the 

 body-whorl there is a fourth especially prominent lira falling within 

 the aperture, just beneath the upper extremity of the labrum. Aper- 

 ture bluish or purplish within, with the dark streaks of the exterior 

 showing through, together with the canal equal to half the length 

 of the shell ; columella arcuate and whitish or livid above, oblique 

 and purplish black below the middle ; canal oblique, of moderate 

 length, only a trifle reflexed. 



Length oO millims., diam. 1/ 



Hab. Station 29. 



The epidermis of this interesting form is of a brown colour, lon- 

 gitudinally, finel}', and exceedingly closely lamellated, bearing upon 

 the transverse lirae minute acute productions somewhat resembling 

 short hairs. 



50. Fusus NiPONicus. (Plate XX. fig. 34.) 



Shell fusiform, brownish white or sordid yellowish, stained at the 

 upper part of the whorls with brown, and ornamented with a narrow 

 zone of the same colour around the middle of the last whorl. Whorls 7, 

 apical one smooth, mamillar, the rest longitudinally plicated and 

 transversely ridged, sloping above, and then very convex ; plicae or 

 ribs oblique, not much elevated, attenuated and faint at the upper 

 ends, eleven in number on the last whorl, attenuating and vanishing 

 ju.st below the middle or convex portion. Transverse lirse numerous ; 

 most of them (about eleven on tlie penultimate whorl) are very fine, 

 thread-like, and simple ; but two or three stouter than the preceding, 

 and situated at some distance apart at the middle portion of the 

 whorls, on crossing the plicae are elevated into compressed and trans- 

 versely elongated tubercles ; suture prettily wav_y, margined with the 

 thickened upper edge of the volutions ; last coutracted below the 

 middle, and produced into an elongated cauda, which is obliquely 

 and rather closely and finely lirate ; the transverse ridges, which 

 become tubercular, number about six or seven on this volution, 

 three of them being more conspicuous than the others. Aperture 

 with the canal equal to about four sevenths of the whole length, 

 whitish within; columella smooth, thinlj' enamelled, tortuous; 

 canal elongate, narrow, oblique. 



Length 22 millims., width 7. 



Hah. Station 25. 



The two specimens of this delicately sculptured species do not, 

 I imagine, represent the ultimate size to which in all probabilitv it 

 attains. The coloured bands are not very conspicuous ; and the 

 entire surface is sculptured by the lines of growth, those imme- 

 diately beneath the suture being arcuate and especially observable. 



