126 . NEW SPECIES OF FISH 



along the middle of the tail npon the carina. Anal 

 and caudal fins falciform, posteriorly narrowed, high 

 and terminating in points anteriorly. Pectoral fins 

 small, longer than the half of the space which sepa- 

 rates their base from the tail. 



Color of a fine blue upon the back, the under side 

 and the opercula silvery ; the iris bluish and argen 

 tine. Scales very small. 



P. 18.— V. 6.— A. 19.— D. 16.— 0. 26. 

 Collected near the Island of Guadaloupe, in 1816. 



11. Hruncata. 



Lower mandible longer than the upper ; caudal 

 fin obliquely truncated, ventral small, lateral line 

 passing above and prolonged to the base of the anal 

 fin into its posterior part, where it rises to pass along 

 the carina to the base of the caudal fin. ' 



Description. Body almost quadrangular, more 

 than three times the length of the mandibles, wider 

 upon the back, which is flat and sloping on either 

 side, so as to form a groove along its middle. 



On each side toAvards the back there is a line with 

 an elongated point, and a little lower a small deep 

 blue band, which is continued almost to the base of 

 the dorsal line. Jaws long and pointedly terminated, 

 the inferior a little longer than the superior, armed 

 with fine conic teeth, of which some are longer and 

 distant with small ones* between them ; teeth of the 

 throat collected upon tubercles. Head flat above : 



