NASSAU, 
the illustrious house of Nassau, Princes of 
Orange: one of them, indeed, though inter- 
nally white, is merely of a deep dirtyish brown 
colour externally, with white bands ; not pos- 
sessing the smallest approach to a yellow or 
orange colour. 
The beautiful shell which we have figured 
is very thick and strong ; and, at the same time, 
smooth and delicate, having a polished surface 
which shines like a looking-glass. It's princi- 
pal colour is a rich yellow orange, bordering 
on brown. Round the contour of the shell, 
there are large green -and yellow bands, with 
obscure white spots ; and, between these, are 
other bands, exceedingly narrow, and minute. 
The aperture, or mouth, of the shell, is of a 
fine silvery white ; on which account, Knorr 
says, it has been sometimes called the Silver 
Mouth. 
W e have not the smallest information, as to 
the part of the world in which this shell is 
found ; nor do we know any thing of the ani- 
mal which it incloses. It seems probable, from it's 
name of Nassau, that it may have been brought 
from 
