10 NEW SPECIES OF EXOCETUS. 



larked towards the head. The back a little flattened. 

 Scales rather large, covering the whole body. The 

 lateral line passes along the sides of the abdomen 

 and touches the abdominal fins. Head flattened 

 above, and slightly carinated to the throat. Eyes 

 distant, at the summit of the head, large and silvery, 

 placed obliquely. Anterior rays of the pectoral fins 

 unequal, the three first simple, and shorter than the 

 fourth and fifth, which are divided like the following. 

 Abdominal fins large, placed nearer to the tail than 

 the head, their extremities rounded, with the first 

 rays simple, and the others divided. The snout a 

 little extended ; the opening of the mouth much in- 

 clined. 



The two individuals which I have seen, the one 

 dried, and the other in alcohol, had lost their color, 

 which was then brownish. It is probable that they 

 are of the same color as the Exocetus volitans, and 

 the individuals which I have met with in the Gulf 

 Stream, and in our traverse from the isle of St. Croix 

 to the United States. I saw several of the length of 

 three or four inches, leaping before our vessel, the 

 color of the body of which was a deep blue, with 

 blackish spots on the fins, which appeared very 

 transparent ; but I was not sufficiently fortunate to 

 procure any of them. 



P. 18.— V. 16— D. 12.— A. 10.— C. 20 rays. 



Exocetus *Nuttallii 

 Two large, thick, fleshy, and trilobate d appen- 



