226 Tbe Trouts of America 



the scales are small. It is abundant throughout 

 western Colorado, and southward as far as the 

 clear mountain streams of Arizona, and speci- 

 mens have been taken from still farther south- 

 ern waters that are similar to those found in 

 the Eagle and Gunnison rivers of Colorado. 

 The technical name of the fish is Salmo clarkii 

 pleuriticus, the subspecific being from a Greek 

 word meaning "side," in allusion to the red 

 lateral band. 



The waters of Colorado are particularly adapted 

 to trout and their lustiness of habit and increase. 

 Dr. David S. Jordan, now president of the Le- 

 land Stanford Jr. University in California, was 

 deputed in 1889, by the United States Fish 

 Commissioner, to ascertain the general charac- 

 ter of the streams of Colorado and their adapt- 

 ability for the introduction of fish not found 

 there. In his elaborate report Dr. Jordan thus 

 writes of the waters of the state: 



" Most of the streams of Colorado rise in 

 springs in or above the mountain meadows, 

 many of them having their origin in banks of 

 snow, which the clear weather of summer is not 

 sufficient wholly to melt. These streams are 

 clear and very cold. In their descent from the 



