222 



NORTHERN ZOOLOGY. 







" Dimensions. 









inches. 



Lines. 





Inches. 



Lines. 



Extreme length ..... 



31 







Length from end of snout to anal 



. 21 







Greatest height of body 



5 



91 



„ „ adipose * 



21 







Circumference of ditto .... 



14 







„ of pectorals . . 



3 



n 



Breadth between the eyes 



2 







„ ventrals . . . 



. 3 







„ „ nostrils 



1 



H 



„ attachment of dorsal . 



3 







Length from end of snout to nostrils 



I 



n 



Height of dorsal .... 



. 2 



4| 



„ „ eyes 



1 



H 



„ adipose 



1 



n 



„ „ angle of opereule 



5 



n 



Length of caudal .... 



4 



8| 



„ „ pectorals 



6 



H 



Its greatest breadth 



4 







„ „ dorsal 



12 







Length of attachment of anal . 



. 2 



41 



„ „ ventrals 



12 



3i 





Gairdner, 



in lit. 



[In this species the gill-cover resembles that of £. salar still more strongly than that of the 

 quinnat does, the shape of the suboperculum in particular being precisely the same with that 

 of salar. The teeth stand in bony sockets like those of the quinnat, but are scarcely so long. 

 Those of the lower jaw and intermaxillaries are a little smaller than the lingual ones, and 

 somewhat larger than the palatine or labial ones. The tongue contains six teeth on each side, 

 the rows not parallel as in the quinnat, but diverging a little posteriorly. The pharyngeals 

 are armed with small sharp teeth. The numbers of the teeth, excluding the small ones which 

 fall off with the gums, are as follow: Intel -max. 4 — 4; labials 21 — 21 ; lower jaw 11 — 11; 

 palate-bones 12 — 12 ; vomer lost ; tongue 6 — 6. When the soft parts are entirely removed, 

 the projecting under edge of the articular piece of the lower jaw is acutely serrated, in which 

 respect this species differs from all the others received from Dr. Gairdner. There are sixty- 

 four vertebrae in the spine. — R.] 



[84.] 13. Salmo paucidens. (Richardson.) Weak-toothed Salmon. 



Quannich. Natives of the Banks of the Columbia. 



" This salmon ascends the Columbia at the same time with the S. Gairdnerii, 

 and in equal numbers. It is taken in company with that species and the quinnat, 

 and has an average weight of three or four pounds. 



" Colour. — Back of head and body bluish-grey ; sides ash-grey with a reddish tinge ; 

 belly white. No trace of spots on the body or fins. Form. — Commissure of the mouth 

 very oblique approaching to vertical, dorsal profile quite straight, tail forked. Ventrals cor- 

 responding to middle of the dorsal and adipose to posterior extremity of the anal. Teeth 

 sparingly scattered and feeble on the jaws, only a few short weak ones on the anterior extremity 

 of the vomer, and on the palate-bones. Fins.— Br. 13 ; P. 17 ; V. 12 ; A. 17 ; D. 12—0. 



* Dr. Gairdner must have accidentally put down wrong figures here in transcribing his notes, as the adipose is not oppo- 

 site to the commencement of the anal, but to its end. — R. 



