MARINE UNIVALVES 169 
is a polished, ruddy brown 
epidermis, but in older ones 
there is a suspicion of shag- 
giness. The interior of the 
aperture is white. And now 
we will examine a few of the 
shells from far-off Alaska; 
that land of wonderful inter- 
est, its hills clothed in ever- 
green, its mountains tipped 
with snow, its glaciers and 
icebergs, its mines” and 
boundless forests, its num- 
berless islands, bays, and 
inlets. Whoever has sailed 
along the coast of Alaska 
never forgets its wonderful 
Fig. 159, x £ (*) 
beauty. In those cold waters, where salmon Jump 
and whales spout close to your steamer and where 
the busy world seems far away,—in those polar 
waters live many mollusks, some of which are 
classed under the family of the Buccinide. 
Fig. 160 (*) 
