240 THE BRIDLED DOLPHIN. 



one of a very numerous troop, which immcdiiitely 

 took to flight on this one being captured. The dark 

 coloured band on the chops of this Dolphin, is the 

 cliaracter -which induced M. Dussumier to give it 

 the name of Frsenatus. 



DELPHINUS SUPERCILIOSUS, Lesson. 

 PLATE XXVL 



The next species we shall adduce of this genus is a 

 very beautiful small variety, for the account of which 

 we are indebted to M. Lesson. 



M. Lesson observed this species after doubling 

 Cape Horn in south latitude 45^. M. Garnot 

 when returning to France from Port Jackson, in the 

 Castle-Forbes, subsequently killed one and described 

 it as follows : — Its length was four feet two inches. 

 The snout was tolerably long, and distinguished from 

 the fdrehead by a deep furrow. The dorsal fin was 

 placed somewhat behind the middle of the body, 

 and terminated in an acute point. All the upper 

 parts of the body are of a brilliant blackish-blue 

 colour, and the sides and under part shine with a 

 silvery whiteness. The pectorals are brown, though 

 placed on the white gi'ound of the sides. What 

 especially characterises this Dolphin is a large white 

 streak over the eye, reaching to the front; and 

 another mark like a white ribbon running along the 

 sides of the body near the tail. Teeth ' . 



