310 Notices of Certain Species of 



spotted. Back dark-green, spotted with spots of lighter green ; 

 sides spotted with red. Scales adherent and about the size of 

 those of 8. Bairdii. A disposition towards the formation 

 of a flesh}'- " tit " projecting upwards at the point of lower 

 jaws, with a corresponding notcli between the pre-maxillaries. 

 Superior maxillary reaches to a point considerably behind the 

 eye. Brancliiostegals 13 — 14. The anterior rays of the lower 

 fins are covered with a differently colored skin from that of the 

 rest of the fin — as in S. fontinalis and 8. Bairdii. Two teeth 

 on the outer extremity of the vomer, behind which from one to 

 three on the shaft. 



Habitat. — Ivootenay River, Rocky Mountains. 



ISTamed in honor of Lt. John G. Parke, U. S, Topog. Engineers. 



.Salnio hudsoniciis, iSiickley. 



Hudson's Bay Trout. 



Sp. Ch. Head contained five times in the total length of the 

 fish. Dorsal outline strongly arched, its point of greatest height 

 being at the first ray of the dorsal. Head small and conical. 

 Mouth quite small. Teeth small ; a few on the head of the 

 vomer ; none on its shaft. Two rows of teeth on the tongue. 

 Tail broad, and usually barred. In some specimens the bars 

 appear to have faded out. Upper parts dark (bluish?), sides 

 brighter, belly white. The whole fish quite silvery. Scales 

 small, but larger than in S. fontinalis. They are firmly adhe- 

 rent, and quite conspicuous. Flanks of adults above and below 

 the median line covered with light spots about the size of small 

 peas — those in alcohol appearing as if they had been of a cream 

 or orange color during life. 



Integument over first ray of pectorals of a light orange or 

 reddish color ; that over the next ray dark. Female nearly 

 similar. 



Diagnosis. — Would not be easily confounded with any 

 Atlantic species except S. fontinalis, — but has smaller head, 

 larger spots, and larger, more adherent, and thicker scales. 



