FAUNA AMERICANA. 283 



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Habit. The Whales of this genus are the 

 smallest of the family ; they inhabit all seas arjd 

 under very different latitudes ; they swim com- 

 monly in small troops ; and are of a carnivorous 

 nature. 



1. Subgenus. Delphinorhyiichiis, Blain. 



Snout prolonged into a long and thin beak, 

 not separated from the forehead by a groove; 

 jaws almost linear, with their borders both above 

 and below furnished with numerous teeth ; a sin- 

 gle dorsal fin, or only a longitudinal cuticular 

 fold, slightly elevated and placed rather poste- 

 riorly. 



Species. 



1. Delphinus coronatus, Freminville, Nouv. 

 Bull, de la Soc. Phil. t. 3. No. 56. p. 71. pi. 1. fig. 

 2. A. B. 



Char. Essent. Snout produced into a very 

 long and pointed beak, the inferior longer than 

 the superior ; twenty-four teeth on each side be- 

 low, and onlv fifteen above ; a small dorsal fin ; 

 colour black above and beneath ; two large, yel- 

 low, concentric circles on the forehead. 



Dimensions. Total length from thirty to thirty- 

 six feet ; circumference more than fifteen feet. 



Description. General form elongated ; head 

 small, relative to the body ; forehead convex, ob- 

 tuse; jaws in form of a beak, very long and point- 



