DR. J. MURIE ON THE ANATOMY OF THE SEA-LION. 529 
deep and laterally flattened, while the back is arched in the manner of a defiant cat. 
And so, waking and sleeping, walking or swimming, there is a ceaseless change of 
relation in the figure and proportion of the parts. ‘This does not entirely depend on 
mere change of attitude, but also upon the unusually lithe and mobile nature of the 
entire spinal column and ribs, furnished as these are with an abundance of cartilaginous 
material and fibro-elastic ligaments. 
1 This characteristic sketch, from the pencil of Mr. Wood, appeared in ‘ Land and Water’ for the 21st April, 
1866. I am indebted to Mr. Lord for kindly allowing me the use of the block. 
4G2 
