224 



NORTHERN ZOOLOGY. 



of the vertex, and another on the preopercule. Body below the mesial line greyish-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 portion 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 mouth is 

 closed, except at the two extremities. Teeth. — Jaws fully armed with strong hooked teeth, 

 except a small space in the mesial line of the upper jaw. Teeth moveable, from being im- 

 bedded in soft cartilaginous sockets. Two rows of strong lingual teeth, a single 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 the pharyngeal bones. Rays. — Br. 16 ; P. 16 ; V. 9 ; A. 16 ; 

 D. 12—0. 





" Dimensions. 







Inches. 



Lines. 



Inches. 



Lines. 



Extreme length . . . . .34 



Length from end of snout to adipose 



27 







Greatest height of body ... 9 



„ of pectorals 



. 5 







Circumference of body . . . .21 



„ ventrals . 



4 







,, tail at root of caudal . 7 



6 „ attachment of anal . 



. 4 



2* 



Breadth between eyes ... 3 



6 Height of anal . 



3 







Length from end of snout to eyes . . 3 



9J Length of attachment of dorsal 



4 







„ „ angle of opercule 8 



6 Height of ditto .... 



. 4 



2 



„ „ pectorals 9 



2£ „ adipose . . . . 



2 







„ „ dorsal . 16 



Length of caudal .... 



. 7 







„ „ ventrals . 18 



Breadth of caudal . 



8 







„ „ anal . 21 











" This description applies to a female — the male differs in the upper jaw being elongated 

 into a proboscis, which projects beyond the lower jaw when the mouth is closed : it is formed 

 of a moveable cartilaginous mass articulated to the extremity of the nasal bones, and is fur- 

 nished with teeth as well as the rest of the jaw. The lower ( jaw is narrower and entirely 

 received within the concavity of the upper one when the mouth is shut.'' — Gairdner, in lit. 



[85.] 



14. Salmo tsuppitch. 



The Tsuppitch. 



Tsuppitch. Natives of the Banks of the Columbia. 



" The Tsuppitch ascends the Columbia at the same time with the Ekewan. I 

 counted 1644 ova in the ovary of a female. 



" Colour. — Back of body and head studded with oval and circular spots : sides and fins, 

 including the caudal, destitute of spots : back mesially bluish-grey passing on the back of the 

 head into blackish-grey, and on the sides into yellowish-grey, with a greenish tinge and silvery- 

 white. General colour of the fins ash-grey. Teeth. — Jaws fully armed with minute sharp 

 teeth, a single row on each palate-bone, a very few on the anterior end of the vomer in a single 



