152 saljionida:. 



a very sliert lower limb. The length of the pectoral is less than one- 

 half of the distance of its root from that of the ventral. Adipose fin 

 very small. Caudal deeply forked, the length of its middle rays 

 being one-third of that of the longest. Body and caudal fin covered 

 with round pale spots of moderate size. 



Richardson says that this species is common in every river and 

 lake from Canada to the northern extremity of the continent ; but 

 we have shown above, that he evidently confounded several species 

 imder this name. Our two specimens are probably from Boothia 

 FeUx. 



a-h. Stuffed : 23 inches long. From the Collection of J. Rae, Esq. 

 c. ? Young, not in good state. Fort Halkett. Presented by B. R. 

 Ross, Esq. 



26. Salmo fontinalis. 



Salmo fontinalis, Mitch. Tram. Lit. ^ Phil. Soc. Neiv York, i. p. 435 ; 



Richards. Faun. Bor.-Amer. iii. p. 176, pi. 83. fig, 1, and pi. 87. fig. 2 ; 



Storer, Report Fish. Massach. p. 106 ; Kirtl. Repoi't Zool. Ohio, p. 169, 



and Bast. Journ. Nat. Hist. 1843, p. iv. p. 305, pi. 14. fig. 2 ; Dekay, 



Faun. New York, Fish. p. 235, pi. 38. fig. 120 ; Ayres, Bost. Journ. 



Nat. Hist. iv. 1843, p. 273 ; Cuv. 8f Val. xxi. p. 266 ; Bingelow, Bost. 



Journ. Nat. Hist. vi. 1850, p. 49. 

 Salmo hoodii, Richards. Faun. Bor.-Amer. iii. p. 173, descr. part. (spec. 



from Mingan River). 

 Salmo nigrescens, Rajin. Ichth. Ohiens. p. 45. 



Baione fontinalis, Dekay, Faun. New York, Fish. p. 244, pi. 20. fig. 58. 

 Salmo ervthrogaster, Dekay, Faun. New York, Fish. p. 236, pi. 39. 



fig. 126. 

 Hucho fontinalis, wj. 



B. 12. D.12. A. 10. L.lat. 200. C£ec.pyl.34. 



No median series of teeth along the hyoid hone. 



Form of the body similar to that of S. umhla ; head of moderate 

 size, with the cleft of the mouth very wide, the maxillary being very 

 long, narrow, straight, extending far behind the eye ; it reaches to 

 the vertical from the hind margin of the orbit in specimens 6 inches 

 long. Adult males with the lower jaw prominent. Teeth of mod- 

 erate size. Preaeoperculum short in a longitudinal direction, with 

 the lower limb very indistinct. Fins moderately developed; the 

 length of the pectoral is about one-half of the distance of its root from 

 that of the ventral. Dorsal as high as, or higher than, long. Caudal 

 fin in old specimens truncate, in young ones (6 inches long) slightly 

 lunate. Body with numerous pale-red spots ; fins generally with a 

 black and orange (or white) marginal band. Dorsal fin with trans- 

 verse series of brown or black spots. 



Rivers and lakes of British North America and of the northern 

 parts of the United States. 



a. Stuffed : 22 inches long. From tne Collection of the Zoological 



Society. 

 h. Stuffed: 19 inches long. Albany River. Presented by Sir J. 



Richardson as S. hoodii. 



