Cut- Throat Trout 213 



and, except for the mouth being slightly larger, 

 differs from it only in very few, if in any, other 

 characteristics. 



It is my purpose, so far as I may be able, in 

 these monographs of American trouts and charrs, 

 to give brief life histories of each fish, with their 

 markings and coloration sufficiently individualized 

 that the angler, with these notes at hand, will be 

 able to distinguish on sight the species of fish he 

 has netted. With this object in view I have 

 avoided, so far as possible, the technical phraseol- 

 ogy which renders works on ichthyology uninter- 

 esting and often unintelligible to the average 

 reader of books on fish and fishing. 



The typical American cut-throat, or Columbia 

 River trout [Sahno clarkii\ ranges in the coast- 

 wise streams of Puget Sound south to Elk River, 

 Humboldt County, California, and its various 

 forms eastward to the head waters of the Rio 

 Grande and the Utah Basin. I have taken a 

 subspecies in the Upper Missouri, and others are 

 reported as found in the highest sources of the 

 Kansas River ; another form is said to be in the 

 mountain streams of Mexico, and, as before stated, 

 the parent fish are believed to have originally 

 migrated from Asian waters. No true cut-throat, 



