110 SKETCH OF THE HISTORY OF MAMMALIA. 



68. — Coypu. 



4-4 

 Molars , increasing in size from the first to the last, 



with winding folds of enamel. (Fig. 67.) The eyes are 

 small, approximating to each other, and placed high in 

 the head. Behind the upper incisors there is a hairy 

 palate or space, a peculiarity noticed also in Bathiergiis. 

 The body is clothed with two sorts of hair, an under- 

 garment of fine close fur almost water- proof, and an 

 upper layer of long, shining, straight hairs of a rich 

 brown, which is the general colour, the muzzle being 

 dirty white. The limbs are short, but strong; and the 

 movements of the animal on land are slow and crawling. 

 (Fig. 68.) 



