CLASS GASTROPODA 
197 
of enamel, the pillar nearly straight, as in the wide short canal; the 
operculum large, black, with apical nucleus. Height of shell, 144; of 
last whorl, 78; diameter, 58 mm. (Dali.) 
Type in United States National Museum, No. 224077. Type locality, 
United States Bureau of Fisheries, Station 3549, in Bering Sea. 
Range. Pribilof Islands to Unalaska, Alaska. 
Beringius indentatus Dali, 1919 
Plate 21, fig. 3 
Proceedings of the United States National Museum, 56:312. 
Shell large, short-spired, acute, solid, livid whitish, with a thin dehis¬ 
cent pale brownish periostracum and six shouldered whorls exclusive 
of the (lost) nucleus; axial sculpture of (on the penultimate whorl, 14) 
rounded, arcuate ribs, with wider interspaces, most prominent on the 
shoulder but extending over the periphery almost to the canal, though 
somewhat irregularly disposed; other axial sculpture of rather conspicu¬ 
ous crowded incremental lines; spiral sculpture none, on and near the 
periphery of the last whorl are a few more or less obsolete irregularly 
divergent raised lines; aperture wide, white, throat pinkish, outer lip 
thin, expanded, body and pillar thickly enameled, pillar straight, canal 
short, shallow, wide, hardly recurved; operculum dark brown chrysodo- 
moid, the scar of attachment relatively small. Height of shell, 110; of 
last whorl, 78; diameter, 58 mm. (Dali.) 
Type in United States National Museum, No. 213315. Type locality, 
United States Fish Commission Station 3282, off the Khudubine Islands, 
Bering Sea. 
Range. Kotzebue Sound to Aleutian Islands, also Japan. 
Genus LIOMESUS Stimpson, 1865 
Shell Bucciniform, usually solid, with a short twisted canal, smooth 
pillar and body, the outer lip thickened but not reflected, the operculum 
with apical nucleus; periostracum conspicuous, often villous. (Proceedings 
of the United States National Museum, 24.) 
Type. Buccinum dalei J. Sowerby. 
Distribution. Arctic, Pacific, and Atlantic. 
Liomesus nassula Dali, 1901 
Nautilus, 15:89. Bulletin 112, United States National Museum; PI. 8, fig. 6. 
Shell solid, white, covered with a pale-olive, slightly-hispid periostra¬ 
cum, with a rather elevated, subacute spire of seven whorls; suture dis- 
[ 197 ] 
