116 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
the penultimate whorl) obsolete on the base and most of the last whorl; 
anal sulcus wide, shallow; aperture simple, inner lip erased. Height of 
shell, 18.5 ; of last whorl, 12.5 ; diameter, 9 mm. (Dali.) 
Type in United States National Museum, No. 226200. Type locality, 
Station 3607, off Pribilof Islands, Bering Sea, in 987 fathoms. 
Range. Off Pribilof Islands, Bering Sea. 
Lora alitakensis Dali, 1919 
Proceedings of the United States National Museum, 56:43; PI. 14, fig. 7. 
Shell thin, pale-yellowish, with touches of reddish-brown on the prom¬ 
inences, with about six whorls, the nucleus eroded, the suture distinct; 
axial sculpture of (on the last whorl 14) sigmoid ribs which cross the 
whorls and reach the canal with subequal interspaces; spiral sculpture 
with narrow channeled grooves with wider flattish interspaces often 
divided by a central feebler groove; these cover the whole surface; aper¬ 
ture simple, inner lip erased, white; canal short, very slightly recurved. 
Pleight of shell, 20; of last whorl, 14; diameter, 9 mm. (Dali.) 
Type in United States National Museum, No. 222088. Type locality, 
Unimak Island, Alaska. 
Range. Unimak Island, Aleutians, to Alitak Bay, Kodiak, Alaska. 
Lora solida Dali, 1886 
Proceedings of the United States National Museum, 9 :301; PI. 3, fig. 4. 
Shell solid, short, stout, with five strongly sculptured whorls and a 
small smooth nucleus; color a faint blush of salmon covering the white; 
epidermis very thin, smooth, and adherent; transverse sculpture of, on 
the last whorl, thirteen, stout, shouldered, prominent, rather sharply 
rounded ribs, which pass over the periphery and disappear at the anterior 
third of the whorl; they cross the anal fasciole with but little flexure, 
but curve forward from the angulation (generally more decidedly than 
the figure indicates), at which they are somewhat swollen, with about 
equal interspaces; longitudinal sculpture of numerous equal uniform 
grooves, with convexly rounded subequal interspaces, faint on the anal 
fasciole, but covering the rest of the shell with remarkable uniformity, 
averaging five or six to the space of a millimeter; one or two stronger 
ones follow the angulation of the whorl, but not prominently; pillar stout, 
white; anal notch obsolete; operculum short, broad, thin, yellowish. 
Length of shell, 13; of aperture, 8; breadth, 7 mm. (Dali.) 
Type in United States National Museum. Type locality, Harbor of 
Kyska, Alaska. 
Range. Bering Sea to Puget Sound. 
[ 116 ] 
