BRITISH ANIMALS. 
I. 
VERTEBRAL ANIMALS. 
Furnished with a Skull and Vertebral Column for the pro- 
tection of the Brain and Spinal Marrow.- 
II. 
INVERTEBRAL ANIMALS. 
Destitute of a Skull and Vertebral Column^ for the protec- 
tion of the Brain and Spinal Marrow. 
