174 WEST AMERICAN SHELES 
Fig. 168 (*) Fig. 169, x = @) 
shell sometimes measures nearly 6 inches in 
length, and is strong and heavy. It has 
a regular, conical spire, three inches long, marked 
with numerous rounded knobs. The aperture is 
pear-shaped and the outer lip has many teeth 
and internal ridges, while the canal turns back- 
ward. The operculum is dark and conspicuous. 
This shell is chiefly found in southern waters. 
Figure 168 gives a view of Chrysodomus phoe- 
niceus, Dall, the Purple-red Spindle-shell. Its 
seven whorls are of a purplish brown color. The 
sculpture is feeble, and the epidermis conforms to 
the lines of growth. It was dredged off British 
Columbia in 238 fathoms of water. 
