128 SALMONID^. 



nearly as possible iu the centre of the length of the body ; and 

 the second dorsal fin is equidistant from the posterior extremity 

 of the dorsal and that of the caudal fin. The origin of the 

 ventral fin is vertically under the origin of the dorsal ; and the 

 origin of the anal equidistant from the termination of the 

 ventral and the origin of the caudal fin. The pectoral fin is 

 about two-thirds the length of the head. 



The pectoral fin has eleven rays ; the first dorsal eleven ; the 

 ventral eight ; the anal fifteen ; the caudal nineteen. The 

 second dorsal, rayless and adipose. 



The head is smooth ; the body covered with small and delicate 

 scales. Teeth on the vomer, the palatine bones, and all the 

 maxillary bones. The head and upper part of the back are 

 beautifully mottled, like tortoise-shell, with brownish green and 

 yellow spots; the gill-covers silvery, with yellowish and pink 

 glazings; the sides, about the lateral line, lustrous metallic 

 bluish-grey, with large yellow spots more brilliant than on the 

 back. A double row of vivid vermilion specks, irregular in 

 number, along the lateral line, above and below it. The sides 

 and upper portion of the belly glazed with bright carmine ; the 

 belly silvery white ; the pectoral fins reddish-yellow, with a 

 dusky anterior margin ; the ventral fins the same, with the 

 margin blacker and more definite ; the anal fin red, with a broad 

 white anterior margin, and a black lunated streak between the 

 white and red ; the caudal fin purplish-brown ; the first dorsal 

 golden-yellow, barred and spotted irregularly with jet-black ; 

 the second dorsal similar to the back. 



Such, briefly, are the characteristics and general appearance 

 of this beautiful and interesting fish, which, in every part of the 



