32 THE OYSTER. 



PLATE II. 



An oyster in the right valve of the shell, dissected 

 so as to show the internal organs. The anterior end 

 of the body is at the top of the figure, and the dorsal 

 surface on the right hand. 



b the mantle, c the muscle, d the heart, g the gill, 

 h the lips, i the intestine, j the liver, m the mouth, 

 s the stomach. 



