is a bright blue spot. Ventral fins blackish. The first dorsal 

 fin is trigonal, and has the third ray lengthened and longest; 

 the three last rays tipt with deep-black ; the second fin is length- 

 ened, broadest at the end, the membrane greyish-white ^vith 

 narrow longitudinal lines of yellow. Caudal fin lanceolate, 

 pointed, blackish-purple, margined and marked with yellow lines 

 parallel with the borders. Pectoral fin ovately rounded, with 

 faint yellow transverse bands. Anal fin resembling the second 

 dorsal, greyish, with the margin dull-purple. Scales large, very 

 deciduous ; lateral line invisible ; lower jaw longest ; teeth mi- 

 nute. Body and fins semi-transparent. The first dorsal fin has 

 seven rays; the second fifteen; anal fifteen; pectoral twelve; 

 caudal seventeen ; ventral fourteen. 



