SALMONIDA. 389 



ABDOMINAL 

 MALACOPTERYGII. SALMONIDiE. 



THE EKEWAN. 



Salmo Scouleri; Richardson. 



" ' The Ekewan, which averages thirty pounds in weight, ascends 

 the Columbia towards the end of August and in the month of Septem- 

 ' ber. Its flesh is paler and of inferior quality to the four preceding 

 kinds.' From Br. Gairdner's description of this species, 1 have little 

 doubt of its being the same with the S. Scouleri of Observatory Inlet ; 

 and I should, without hesitation, have referred to it the spinal col am v 

 and opercular bones noticed at the close of the account of the prece-« 

 ding species, had not Dr. Gairdner mentioned that no specimen of the 

 Ekewan was sent, as he had not obtained one small enough to be put 

 in spirits. 



" ' Color. — Body above medial line smoke gray, passing on head and 

 tail into bluish gray ; a slight reddish tinge at the root of the dorsal, 

 and between it and the adipose. Fins bluish gray, and all tinged with 

 red except the caudal, which, with the back, is studded with irregular 

 semilunar and stellated blackish brown spots. A large vermillion red 

 patch in the concavity of the vertex, and another on the preopercule. 

 Body below the mesial line grayish white with a reddish tinge. Form. 



A remarkable flattening over extremity of snout, behind which 



a slight concavity to occiput, where the body rises suddenly into a 

 hump, and continues rising as far as the first dorsal, this elevated por^ 

 tion being accuminated into a ridge. A notch behind the point of the 

 snout gives an arched outline to the commissure of the mouth. Lower 

 jaw also arched upwards, so that the two jaws do not approach each 

 other when the mou,th is closed, except at the two extremities. Teeth. 

 — Jaws fully armed with strong hooked teeth, except a small space in 

 the medial lino of the uppsr jaw. Teeth moveable, from being imbed- 

 ded in soft cartilaginous sockets. Two rows of strong lingual teeth, a 

 Bingle row on each palate bone, and a few rudimentary ones can be 

 felt in a single row on the anterior extremity of the vomer. Teeth on 



