1879.] MR. E. A. SMITH ON MOLLUSCA FROM JAPAN. 197 



apex, banded with light brown, one band at the top of the whorls 

 darker than the rest. Whorls 9 ? (apex broken), obliquely sloping 

 at the upper part, and slightly convex at the sides, strengthened 

 with longitudinal suberect rounded costse, whereof there are 1 2 on 

 the penultimate whorl and about 16 on the last (those towards the 

 Jabrum being finer), gradually vanishing a little below the middle ; 

 between the more slender ribs there are a few fine intermediate ones, 

 but this may only be an individual peculiarity ; the whorls are also 

 transversely lirate ; hrse of different thicknesses, numerous, raised 

 equally between and upon the costae, fewer and coarser upon the 

 upper whorls, and about 30 on the body-whorl. Aperture rather 

 narrow, less than half the length of the shell, exhibiting the same 

 banded colours as the exterior ; labrum thickened within and ex- 

 teriorly, thin at the extreme edge, smooth interiorly ; sinus small at 

 the suture ; columella simple, obliquely flexuous ; canal a trifle ob- 

 lique and slightly recurved. 



Length 12 millims., width 3|. 



Hub. Station 21. 



This species belongs to a section of Pleurotoma which includes 

 saturata, Reeve, subulu, Reeve, albibalteata, Reeve, and afewotliers. 



34, Daphnella? stJBzoNATA. (Plate XIX. fig. 27.) 

 Shell elongate, dull lightish brown, more or less distinctly banded 

 at the middle of the whorls, with opaque white lines interrupted 

 by dark brown dots or short lines ; sometimes marked with opaque 

 white streaks just beneath the suture, and with a second less apparent 

 transverse band around the lower part of the last volution. Whorls 

 1 1 ; apical ones minutely reticulated ; the rest convex, divided by an 

 oblique suture, longitudinally costate, and transversely closely 

 lirate; costse rounded, a little obhque, 16 on the penultimate, and 

 fewer on the preceding whorls ; spiral iirse equally elevated on and 

 between the ribs, about 12 on the penultimate, and, like the costae, 

 gradually fewer on the upper whorls ; the entire surface micro- 

 scopically reticulated. Aperture rather broad, somewhat of the 

 same colour as the exterior, but a little clouded ; lip arcuate, mode- 

 rately thickened, with a small sinus at the suture, smooth within ; 

 columella suberect, a little oblique at the lower end, smooth ; canal 

 rather wide, short, but very little recurved. 



Length 17 mihims., width 5. 



Hub. Station 27. 



Allied to Plevrotoma albibalteata. Reeve, but narrower, with less- 

 swollen whorls, of a different colour, and with the characters of the 

 aperture and lip not agreeing. 



35. Daphnella? saturata, Reeve. 



Pleurotoma saturata, Rve. Con. Icon. vol. i. sp. 213. 



Hab. Station 27. Corrigidor, Philippines (^Cuming). 



This specimen is a little lighter in colour than the type. The 

 whorls in all examples are somewhat convex and have a narrow fur- 

 row just beneath the raised margin at the top; they are 9 iu 



