256 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Type in United States National Museum, No. 332759. Type locality, 
Point Barrow, Arctic coast of Alaska. 
Range. Point Barrow, Alaska. 
Buccinum angulosum transliratum Dali, 1919 
Proceedings of the United States National Museum, 56:328. 
Shell of moderate size, thin, somewhat inflated, with about five whorls 
exclusive of the (lost) nucleus; the suture gently appressed; spiral sculp¬ 
ture in minor particulars like that of B. angulosum, but with four strong 
rounded cords, with much wider subequal interspaces on the last whorl 
and eight or more irregular feeble ribs obsolete in front of the suture 
also on the base; other axial sculpture of very fine hardly visible incre¬ 
mental lines; aperture creamy-white, the outer lip thin, hardly reflected, 
the body whorl glazed, the pillar slender, arcuate, short, with a deep 
short, rather wide canal and a strong siphonal fasciole; the periostracum 
thin, pale-yellowish, smooth. Height of shell, 46; of last whorl, 36; 
diameter, 28 mm. (Dali.) 
Type in United States National Museum, No. 221455. Type locality, 
Point Belcher, Arctic coast of Alaska. 
Range. Point Barrow to Bristol Bay. 
Buccinum angulosum subcostatum Dali, 1885 
Ray, Polar Expedition to Point Barrow, Report, 179; PI. 3, fig. 2. 
This form intergrades with typical B. angulatum and B. normale . The 
typical form has a distinct angle on the body whorl, and the sculpture 
consists of widely spaced longitudinal ribs, while in B. normale the 
sculpture consists of (in most specimens) very fine spiral lines, but in 
some specimens the longitudinal ribs are very faint. In B. subcostatum 
the longitudinal ribs and spiral lines are nearly obsolete. All of the forms 
are about the same dimensions. (Oldroyd.) 
Type in United States National Museum. Type locality, Point Barrow, 
Arctic. 
Range. Known only from type locality. 
Buccinum fringillum Dali, 1877 
Proceedings of the California Academy of Sciences, 7:9. Conchylien Cabinet, 2d edi¬ 
tion; PI. 91, fig. 9, 1883. 
Shell white, resembling B. sericatum Hancock ( =cyaneum ), on the 
one hand, and B . ciliatum Fabr., on the other. It has the dense fringed 
epidermis of ciliatum (when the shell is perfect), with the sculpture of the 
same, but wanting the tooth on the columella, and having a number of 
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