246 TEN YEAES IN SWEDEN. 



Gen. Monodorij L. 



Teeth two, one generally remaining undeveloped in the 

 jaw, the other stretching forward in a line with the body, 

 straight, long, and spirally twisted ; no dorsal fin. 



82. MONODON MONOCEROS, L. Yanlig Norhval. The Nar- 

 whal. 



Length 13 to 16 ft. ; tusk often 9 ft. j colour yellow- 

 ish white, covered all over with round greyish spots. 

 Only met with off the northern coasts of Scan- 

 dinavia. 



Two small pointed teeth in the very front of the under 

 jaw ; nose forms a pointed kind of beak. 



Gen. Hyperoodon, L. 

 A dorsal fin, snout produced, forehead much elevated. 



83. HYPEROODON BOREALIS, Nilss. Nabbhval. The Bottle 



Head. D. 



Head like that of a dolphin, but the snout is not so 

 long, and the jaws are without teeth ; length 20 to 25 

 ft. ; head black above, white underneath. 

 Is principally confined to the very northern seas, but 

 specimens have been taken in the Cattegat, Sound, and 

 even in the Little Belt. 



Fam. 2. Whales with whalebone. 



1 . With dorsal fin ; longitudinal folds on the throat and 

 belly ; plates of whalebone, short and thin. 

 (a). Pectorals short. 



Gen. Balcena. 



Body large, fins as in the dolphin ; blow-holes formed by 

 two longitudinal furrows. 



84. BAL2ENA ROSTRATA, Fab. Yik-hvalen. 



The smallest of all the whales, and is oftener taken in 



