516 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiv. 
periostracum; nucleus, and possibly a whorl or two more, eroded; 
subsequent whorls somewhat irregular, moderately convex, with a 
well-marked suture bordered in front by a narrow turgid band, in 
front of which again is a shallow rounded anal sulcus which does not 
leave a well-marked fasciole, and is a good deal nearer to the suture 
than to the periphery; in front of the fasciolar region are a series of 
12 or 13 short ill-defined ribs with equal or wider interspaces, becom- 
ing obsolete at the periphery, and which are proportionately sharper 
on the earlier whorls; incremental lines rather prominent and irregular, 
the surface also sculptured with a singular oblique arrangement of 
small loops and furrows obliquely irregularly^ disposed, recalling the 
pattern familiar on bookbinders' "combed" marble paper, but less 
regular, which covers the whole shell; pillar a little twisted, straight, 
obliquely attenuated in front, without any marked callus; canal short, 
wide, somewhat recurved; outer lip convexl}^ arcuate, thin, sharp; 
there is a slight thickening on the middle of the pillar, which in the 
interior of the shell may develop into something more prominent. 
Lon. of shell (eroded) 19.3, of aperture 9.0; max. diam. 7.6 mm. 
Dredged off Acapulco, Mexico, in 660 fathoms, ooze, by the U. S. 
Fish Commission steamer Albatross at station 3418; bottom tempera- 
ture 39° F. U.S.N.M., 109030. 
This elegant little shell has a sculpture quite unique, as far as I 
know. The animal has retracted so far that I can not tell whether it 
is operculate or not, but believe it may be so. As there is only one 
specimen and the surface is eroded in spots, I am unable to settle the 
question by having a section made, and the same difficulty prevents 
an investigation into the armature of the pillar, if anj^ exists. 
DRILLIA EMPYROSIA Dall. 
Plate XXXIX, fig. 5. 
Drillia empyroda Dall, Nautilus, XII, No. 11, Mar., 1899, p. 127. 
Off San Pedro, California, in 20 to 50 fathoms ; Oldroyd. 
The shell is yellowish with a burnt sienna brown tint on the later 
whorls ; a paler peripheral band develops white patches where it crosses 
the ribs. Numerous fine specimens have since been dredged by the 
party belonging to the summer laboratory of the Universit}^ of Cali- 
fornia, at San Pedro. 
CANCELLARIA MIDDENDORFFIANA Dall. 
Plate XXXVIII, fig. 6. 
Admcle middendorffiana Dall, Proc. U. S. Nat. Mire., 1884, p. 524; 1886, p. 297. 
North end of Nunivak Island, Bering Sea, Dall. U.S.N.M., 108972. 
This fine and rare species has hitherto been unfigured. 
