248 WEST AMERICAN SHELLS 
Chlorostoma brunneum, 
Phil., the Brown Turban-shell, 
Figure 279, is a fine species, 
living on the rocks exposed at 
very low tide or on the sea- 
weed. It has a handsome, rich 
brown shell, with a portion of 
white around the aperture. The 
lines of growth are very oblique, and are easily 
noted. Even the dead and worn shells preserve 
their brown color, and ean be easily recognized. 
The figure represents a large specimen, though 
old ones are sometimes found much overgrown. 
Chlorostoma aureotinctum, Fbs., the Gilded 
Turban-shell, is a southern species with a shell 
resembling the last, but the whorls are banded by 
a few very heavy, rounded, spiral ridges, with 
wavy crossings. The shell is gray or nearly black, 
while the large umbilicus is marked with a bright 
yellow stain, which gives the species its name. 
The height of the shell is about an inch. 
Chloréstoma monteréyi, Kien., the Monterey 
Turban-shell, (C. pfeifferi). The shell of this rare 
species is strictly conical, with whorls almost per-. 
fectly flat. The base likewise is flat and cireular, 
with almost obsolete spiral lines. The columella 
does not spread around the umbilicus, which is 
funnel-shaped, white within, and its edges defined 
by an angle. The color is light brown or olive, and 
the height of the shell, which about equals the 
diameter, is an inch or more. 
