272 AMERICAN GAME FISHES. 



Proc.Acad.Nat.Sci.,Phila.viii,2i8, 1856; Salar lewisi, Grd. Proc. 

 Acad. Nat. Sci., Phila. 219, 1856; Salar virginalis, Girard, 1. c. 

 220; Salmo carinatus, Cope, Hayden's Geol. Surv. Mont. 1871, 

 471 472; Salmo Utah, Luckley, Monogr. Salmo, 136; Salmo 

 aurora, lewisi, and virginalis, Gunther, vi, 119 123.) 



In "The Fishery Industries of the United States," issued 

 under the auspices of the Smithsonian Institution, the fol- 

 lowing observations are made on this fish: 



BLACK-SPOTTED TROUT SALMO PURPURATUS. 



This fish is known as the "Trout," "Mountain Trout," 

 "Spotted Trout," "Black Trout," "Silver Trout," etc., in 

 the mountains, but when in the ocean, full grown, as "Sal- 

 mon Trout," or "Steel Head." The Indian name, "Preestl," 

 is also ascribed to it on the Upper Columbia. It reaches 

 a weight of thirty pounds under the most favorable circum- 

 stances, but may be found in any stream or lake, of any 

 length from two inches up to two or three feet. Unlike 

 S. Gardincri, the young are very common, and it probably 

 begins breeding in mountain streams, at a length of less than 

 a foot. It is universally distributed through the Rocky 

 Mountain region, chiefly east of the Sierra southward, but 

 reaching the sea from Mount Shasta north/ward. It occurs 

 in every lake of New Mexico, Utah, Western Colorado, 

 Wyoming, Montana, Idaho, Oregon, and Washington. Every 

 stream throughout the most of this region abounds in them; 

 in Puget Sound the young of every size occur in the salt 

 waters in abundance. Individuals are occasionally taken 

 along the California Coast. 



Local variations occur in abundance. Specimens from 

 Seattle have the scales notably larger than those from Vic- 

 toria and Astoria, which agree with Utah Lake specimens 

 in this respect. Those that live in the depths of shady lakes 

 are almost black, while others are pale. Those in the sea are 

 silvery, and only faintly spotted. Only in Lake Tahoe, 



