184 WEST AMERICAN SHELES 
Figure 185 gives us 
an excellent, though 
greatly magnified pic- 
ture of Nassa insculpta, 
Cpr., the Sculptured 
Nassa. This is a rare 
shell, being found in the 
south, and collected 
chiefly by dredging. It 
is thick and solid, the 
outer lip is strongly re- 
flected, and there is no 
transverse sculpturing, 
except (on “the = first 
few whorls. The color 
Fig. 185, x ¢ (*) 
is light brown, but the aperture is white. My larg- 
est Specimen measures 23 
mm. in length. 
Nassa perpinguis, Gld., the Fat 
Nassa, Figure 186, has the prettiest 
shell of any of our species of Nassa. 
The cut does scant justice to a good 
specimen, though it shows that the 
shell is finely checked, being cut into a 
Fig: 186 multitude of little squares. The whorls 
are plump and fat, the shell rather thin, the color 
whitish or hight brown, with sometimes a dash of 
orange inside, and a spiral stripe of chestnut run- 
ning around the middle of each whorl. 
