194 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
United States Bureau of Fisheries Station 4224, as Cygnet Inlet, Boca de 
Quadra, Alaska, in 160 fathoms. 
Range. Unalaska, Alaska, south and east to British Columbia, in 238 
fathoms. 
Beringius kennicottii Dali, 1907 
Plate 23, fig. 3 
American Journal of Conchology, 7:108. Proceedings of the United States National 
Museum, 24; PI. 35, fig. 3, 1902. 
Shell of six whorls, which are rather shouldered but not at all cari- 
nated. Aperture one-half the length the shell or a little less. Outer lip 
strongly arched, forming a right angle with the body whorl, somewhat 
effuse anteriorly. Columella with a thick white callus, with a groove behind 
it, somewhat arched and twisted. Siphonal fasciole well-marked, rather 
narrow, canal short, recurved, rather elongated. Color of shell white, with 
a purple tint within. Sculpture consisting of faint, primary, revolving 
ridges, obsolete on the convexity, and more evident on the anterior part of 
the last whorl; absent on the upper whorls. Secondary sculpture of fine 
crenulated thread-like lines, about eighty to the inch, which are decussated 
by the lines of growth. The whorls are crossed by stout, waved, rounded 
ribs (twelve on the last whorl), which are evanescent on the anterior 
portion of the last whorl, roundly shouldered on the last whorl, less so on 
the upper ones; their anterior declivity rather sharper than their posterior 
slope. These ribs are a little wider than the interspaces. Epidermis yellow¬ 
ish-brown, thin, smooth, following the sculpture of the surface. Lat., 2.5; 
long., 4.5; long, of aperture, 2.4; lat. of aperture, .14 in. (Dali.) 
Type in United States National Museum. Type locality, Captain's 
Harbor, Unalaska. 
Range. Aleutian Islands to Cook’s Inlet, Alaska. 
Beringius kennicottii incisus Dali, 1907 
Miscellaneous Collections, Smithsonian Institution, 50:163. 
Shell resembling B. kennicottii in nearly all features, but distinguished 
by the much deeper and sharper minute spiral grooving, which gives to the 
interspaces the aspect of minute crowded spiral threads; the axial ribs 
(about 15 in number) are also notably prominent and strong. Long, of 
shell, 75; max. lat., 35 mm. (Dali.) 
Type in United States National Museum, No. 110488. Type locality, 
Station 4779, Bering Sea. 
Range. Petrel Bank, Bering Sea, in 45 fathoms. 
[194] 
