166 
SAIL FLUKE. 
opening into a hollow between the ventral fins. In the anal 
fin seventy-two rays, in the pectoral twelve, the first very 
short; on the under side this fin is scarcely half as large as 
that which is above. Rays of the dorsal and anal fins bent 
in a curve backward towards their extremities. In the caudal 
fin eighteen rays, of which the middlemost are much the 
longest. The colour had probably faded through the length 
of time these examples had been out of water; the one described 
was pale brown without spots, in the other was a tinge of 
pink. Along the rays of the dorsal and anal fins was a series 
of slight scales. 
