GRAINING. 



357 



in the Dace ; the ventral fins placed, on a vertical line, but 

 little in advance of the first ray of the dorsal fin ; the anal 

 commences, on a vertical line, under the termination of the 

 dorsal fin-rays when that fin is depressed — the first ray is 

 short, the second ray the longest, the last double ; the 

 fleshy portion of the tail is long and slender, the caudal 

 rays are also long and deeply forked ; all the fins a little 

 longer than those of the Dace. 



The scales are of moderate size, rather larger than those 

 of the Dace, the diameter across the line of the tube greater, 

 and the radiating lines less numerous, as the vignette repre- 

 senting a scale from the same part of the lateral line in two 

 fishes of equal size will show : the number of scales of the 

 series forming the lateral line forty-eight, those in an oblique 

 line up to the base of the dorsal fin eight, and downwards 

 to the origin of the ventral fins four ; the lateral line de- 

 scends from the upper edge of the operculum by a gentle 

 curve to the middle of the body, and thence to the centre of 

 the tail in a straight line. The fin-rays in number are — 



D. 9 : P. 17 : V. 10 : A. 11 : C. 19. 



The Graining has the top of the head, the back, and upper 

 part of the sides of a pale drab colour, tinged with bluish 

 red, separated from the lighter coloured inferior parts by a 

 well-defined boundary line ; the irides are yellowish white ; 

 cheeks and gill-covers shining silvery white, tinged with 

 yellow ; all the fins pale yellowish white. 



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