BIVALVES. 47 
bling the handle of a knife, or razor-sheath; and some 
are curved and bent like the scabbard of a scimitar, 
with their ends invariably open. A few in the 
second department are of a fine pink colour; and the 
S'. Castrensis is singularly marked with short broken 
zig-zag purple lines, resembling Chinese characters, 
which appear, though more faintly, on the inner as 
well as outer surface; but in general, excepting the 
S'. Squamosus, or Scaly-Solen, they have little to 
recommend them. 
Chama. Donax. Spondylus. Anomia. 
Mya. Arca. Solen. 
