204 WEST AMERICAN SHELLS 
Pyramidella conica, var. variegata, Cpr., 
the Obelisk-shell, (Obeliscus variegatus). 
This little shell is shown in Figure 215. 
There is a fold on the columella, and it is 
Fig-215 brownish in color, though somewhat 
clouded. It is found in southern waters, but is 
quite rare, even there. 
Having studied small 
shells for some time we 
turn now to a large one, 
shown in Figure 216, 
named Scaphélla stearn- 
sit, Dall, Stearns’s Volute. 
This great shell, which is 
nearly six inches long, 
comes from northern AI- 
aska. The inner layer is 
purplish, while the outer, 
which resembles  porce- 
lain, is bluish white. Note 
the distinct whorls on the 
columella. 
Scaphéllaarnhéimi, 
Rivers, Arnheim’s Volute, 
dredged in Monterey Bay 
a number of years ago, re- 
sembles the last species, 
but is only half the size. 
The color is yellowish, and the folds on the col- 
umella are four in number. It is to be hoped that 
more specimens of this fine species may yet be 
dredged from beautiful Monterey Bey. 
Fig. 216, x = (*) 
