92 
STllOMBUS. 
Perhaps very accurate investigation might induce 
a corrector of the Linnsean catalogue totally to ex- 
clude all shells in which it is not found. More 
than one species might safely be considered Mu- 
rices, others Buccina, and others even Helices. 
Many of the unfinished shells of this genus resem- 
ble Coni, and are only to be detected by the length 
of their spire, which generally exceeds that of any 
Conus; and sometimes by their tuberculated whorls, 
which are extremely rare in the latter genus. 
The animals of the Strombi are little known ; but 
it is evident from the lateral sinus, which unques- 
tionably has not been formed in vain, that there is 
some specified difference which distinguishes them 
from their nearest allies. Some peculiar construc- 
tion requires the provision of an additional duct. 
The term Strombus was originally used for all tur- 
binated shells, from <rr^oCsw, to turn round; but is 
now exclusively conferred on those ostracodermata 
which are distinguished by the construction above 
explained. 
