BLEAK. 371 



the scales, beautifully striated, of moderate size, the number 

 making up the series on the lateral line about forty-seven ; 

 above it, to the base of the dorsal fin, six ; and below it, to 

 the origin of the ventral fin, four : the dorsal fin commences 

 half-way between the anterior edge of the eye and the end of 

 the short central rays of the tail ; the first ray is but one- 

 third of the length of the second ray, which is the longest in 

 the fin ; the base of the fin as long as the sixth ray : the anal 

 fin commences, in a vertical line, under the origin of the last 

 ray of the dorsal fin, and occupies half the space between its 

 commencement and the end of the fleshy portion of the tail ; 

 the first ray not half as long as the second, which is the 

 longest ; the base of the fin one-third longer than its longest 

 ray : the caudal rays elongated, and deeply forked. The 

 fin-rays in number are — 



D. 10 : P. 17 : V. 9 : A. 18 : C. 19. 



The colour of the back is a light greenish or ash brown 

 tinged with blue ; the sides, belly, cheeks, and gill-covers shin- 

 ing silvery white ; the irides silvery, in large sized specimens 

 tinged with yellow ; all the fins nearly white. 



2 R 2 



