Narwhal 



no fin on the back. Colour dark gray above, white below, 

 sides and back with darker spots. No teeth in the lower 

 jaw and but one above a long horizontal twisted tusk, 5 

 to 6 feet in length. (A short rudimentary tusk is imbedded 

 in the skull on the opposite side.) 

 Range. Arctic seas, accidental farther south. 



This curious "sea unicorn" is another inhabitant of the far 

 north, and its immense tusk plays an important part in the 

 weapons and tools of the Eskimo. This tusk is really one of the 

 front teeth, and while it appears to protrude from the middle 

 line of the head, an examination of the skull will show that it 

 belongs wholly to one side, which is greatly developed at the 

 expense of the corresponding portion of the other side. A second 

 rudimentary tusk will also be found imbedded in the bone of the 

 skull. 



