ZOOLOGY. 



31 



GO. PTYCHOCHEILUS GRANDIS, Grd. 

 General Report upon Fishes. 



Body very much elongated, subf usiform. Head well developed and elongated also. Mouth 

 deeply cleft ; posterior extremity of the maxillary extending to a vertical line intersecting the 

 pupil. Eye small. Isthmus very narrow. Fins well developed. Scales moderate. Upper 

 regions olivaceous ; flanks and &quot;belly silvery or golden. 



Sold under the name of &quot;Salmon Trout&quot; at San Francisco. 



List of specimens. 



XVII. FAMILY SALMONID^E. 



61. SALMO SCOULEKI, Eich. 

 General Report upon Fishes. 



A head is all we have seen of this species, hence it was not deemed expedient to formulate its 

 characters upon such scanty materials. It is called &quot; Ekewan&quot; by the natives of the Columbia 

 river. 



List of specimens. 



62. FARIO AURORA, Grd. 

 PLATE LXYIII. General Report upon Fishes. 



Body fusiform, compressed. Head forming the fourth of the length, caudal fin excluded. 

 Upper jaw longest. Branch of maxillary gently undulating ; its posterior extremity extending 

 to a vertical line passing considerably behind the entire orbit. Anterior margin of dorsal fin 

 equidistant between the tip of the snout and the base of the caudal. Ground color greyish 

 silvery above ; sides and belly yellowish orange ; dorsal fin spotted. 



List of specimens. 



