GRAYLING. 83 



dorsal fin half-way between the point of the nose and the 

 end of the longest caudal rays ; the adipose fin rather nearer 

 the dorsal fin than the end of the tail : the height of the 

 dorsal fin equal to half the height of the body, the first 

 ray short, the next five increasing gradually in length ; 

 the sixtli ray nearly as long as the seventh, and, as well 

 as the five anterior rays, articulated and simple ; the seventh 

 ray and all the rays behind it articulated, branched, and 

 nearly of the same height ; the length of the base of the fin 

 not equal to twice the length of its longest ray : the pectoral 

 fin small, narrow, and pointed : the ventral fins commencing 

 in a vertical line under the middle of the dorsal fin ; the 

 ventral axillary scale one-fourth of the length of the fin : 

 the anal fin commences half-way between the origin of the 

 ventral fin and the end of the fleshy portion of the tail, and 

 ends on the same plane as the adipose fin above it ; the 

 longest ray but little longer than the base of the fin : the 

 tail forked ; the middle rays rather more than half as long as 

 the longest. The fin-rays in number are — 



D. 20 : P. 15 : V. 10 : A. 13 ; C. 20. Vertebrje 58. 



The head is small and pointed, flattened at the top : the 

 breadth of the eye equal to one-fourth of the length of the 

 whole head ; irides golden yellow, pupil blue, pear-shaped, 

 the apex directed forward : the opening of the mouth, when 

 viewed in front, square ; the teeth small, incurved, numer- 

 ous ; none on the tongue, and only a few on the most 

 anterior part of the vomer : behind the head, the nape and 

 back rise suddenly ; the body deepest at the commencement 

 of the dorsal fin, then tapering off to the tail ; abdominal line 

 but slightly convex ; the scales rather large ; the lateral line 

 in the middle of the body not very conspicuous, with seven 

 rows of scales on an oblique line above it, and seven rows 



